Copyright

Preface

Acknowledgements

Legend for Agency Adoptions

Effective Use of This Code

California Code of Regulations, Title 24

Chapter 1 Administration

Chapter 2 Definitions

Chapter 3 Green Building

Chapter 4 Residential Mandatory Measures

Chapter 5 Nonresidential Mandatory Measures

Chapter 6 Referenced Organizations and Standards

Chapter 7 Installer and Special Inspector Qualifications

Chapter 8 Compliance Forms, Worksheets and Reference Material

Appendix A4 Residential Voluntary Measures

Appendix A5 Nonresidential Voluntary Measures

Division A5.1 PLANNING AND DESIGN
PREFACE
Division A5.2 ENERGY EFFICIENCY
Division A5.3 WATER EFFICIENCY AND CONSERVATION
Division A5.4 MATERIAL CONSERVATION AND RESOURCE EFFICIENCY
Division A5.5 ENVIRONMENTAL QUALITY
Division A5.6 VOLUNTARY TIERS

Appendix A6.1 – Voluntary Standards for Health Facilities [OSHPD 1, 2 & 4]

History Note Appendix

The measures contained in this appendix are not mandatory unless adopted by a city, county, or city and county as specified in Section 101.7 and provide additional measures that designers, builders and property owners may wish to consider during the planning, design and construction process.

Division A5.1 PLANNING AND DESIGN

PREFACE

Given that land use and planning are largely regulated locally, cities, counties and cities and counties should consider reducing greenhouse gas emissions associated with development through local land-use practices in conjunction with enforcing the provisions of this code. Specific land use strategies a city, county or city and county may wish to consider include but are not limited to the following:

Site selection. Develop sites for buildings, hardscape, roads or parking areas consistent with the local general plan and regional transportation plan pursuant to SB 375 (Stats. 2008, Ch. 728).

Regional sustainable communities strategy. Site selection and building design and use shall conform the project with the prevailing regional sustainable communities strategy or alternative planning strategy, whichever meets the greenhouse gas target established by the California Air Resources Board pursuant to SB375 (Stats. 2008, Ch. 728), including the general location of uses, residential densities and building intensities.

Transit priority projects. To qualify as a transit priority project, the project shall meet three criteria:

  1. (a) contain at least 50 percent residential use, based on total building square footage and, if the project contains between 26 and 50 percent nonresidential uses, a floor area ratio of not less than 0.75; (b) provide a minimum net density of at least 20 dwelling units per acre; and (c) be within one-half mile of a major transit stop or high-quality transit corridor included in a regional transportation plan as described in Section 21155 of Stats. 2008, Ch. 728;
  2. be consistent with the prevailing sustainable communities strategy or alternative planning strategy, whichever meets the greenhouse gas target established by the California Air Resources Board, including the general location of uses, residential densities and building intensities; and
  3. have all necessary entitlements required by the applicable local government.
  4. Note: For additional information, see Government Code Sections 65080, 65080.1 and 65400 and Public Resources Code Sections 21061.3 and 21155.

The provisions of this chapter outline planning, design and development methods that include environmentally responsible site selection, building design, building siting and development to protect, restore and enhance the environmental quality of the site and respect the integrity of adjacent properties.

The following terms are defined in Chapter 2.

ALBEDO.

BIORETENTION.

BROWNFIELD SITE.

DEVELOPMENT FOOTPRINT.

FLOOR AREA RATIO.

GREENFIELDS.

GREYFIELD SITE.

INFILL SITE.

LOW-EMITTING AND FUEL EFFICIENT VEHICLES.

LOW IMPACT DEVELOPMENT (LID).

NEIGHBORHOOD ELECTRIC VEHICLE (NEV).

PERMEABLE PAVING.

SOLAR REFLECTANCE.

SOLAR REFLECTANCE INDEX (SRI).

THERMAL EMITTANCE.

VANPOOL VEHICLE.

VEGETATED SPACE.

ZEV.

Where feasible, locate project on a previously developed site within a 1/2 mile radius of at least ten basic services, readily accessible by pedestrians, including, but not limited, to one each of bank, place of worship, convenience grocery, day care, cleaners, fire station, barber shop, beauty shop, hardware store, laundry, library, medical clinic, dental clinic, senior care facility, park, pharmacy, post office, restaurant (two may be counted), school, supermarket, theater, community center, fitness center, museum or farmers market. Other services may be considered on a case-by-case basis.
If feasible, select for development a brownfield in accordance with Section A5.103.2.1 or on a greyfield or infill site as defined in Section A5.102.
Develop a site documented as contaminated by means of an ASTM E1903-97 Phase II Environmental Site Assessment or on a site defined as a brownfield by a local, state or federal government agency. The site must be fully remediated in accordance with EPA regulations to the level required of the anticipated land use.
Optimize open space on the project site in accordance with Sections A5.104.1.1, A5.104.1.2 or A5.104.1.3.
Exceed the zoning’s open space requirement for vegetated open space on the site by 25 percent.
Provide vegetated open space area adjacent to the building equal to the building footprint area.
Provide vegetated open space equal to 20 percent of the total project site area.
If feasible, disassemble existing buildings instead of demolishing to allow reuse or recycling of building materials.

Maintain at least 75 percent of existing building structure (including structural floor and roof decking) and envelope (exterior skin and framing) based on surface area.

Exceptions:

  1. Window assemblies and nonstructural roofing material.
  2. Hazardous materials that are remediated as a part of the project.
  3. A project with an addition of more than two times the square footage of the existing building.

Reuse existing interior nonstructural elements (interior walls, doors, floor coverings and ceiling systems) in at least 50 percent of the area of the completed building (including additions).

Exception: A project with an addition of more than two times the square footage of the existing building.

Salvage additional items in good condition such as light fixtures, plumbing fixtures and doors as follows. Document the weight or number of the items salvaged.

  1. Salvage for reuse on the project items that conform to other provisions of Title 24 in an on-site storage area.
  2. Nonconforming items may be salvaged in dedicated collection bins for exempt projects or other uses.
Design storm water runoff rate and quantity in conformance with Section A5.106.2.1 and storm water runoff quality by Section A5.106.2.2 or by local requirements, whichever are stricter.

Implement a storm water management plan resulting in no net increase in rate and quantity of storm water runoff from existing to developed conditions.

Exception: If the site is already greater than 50 percent impervious, implement a storm water management plan resulting in a 25 percent decrease in rate and quantity.

Use postconstruction treatment control best management practices (BMPs) to mitigate (infiltrate, filter or treat) storm water runoff from the 85th percentile 24-hour runoff event (for volume-based BMPs) or the runoff produced by a rain event equal to two times the 85th percentile hourly intensity (for flow-based BMPs).

Reduce peak runoff in compliance with Section 5.106.1. Employ at least two of the following methods or other best management practices to allow rainwater to soak into the ground, evaporate into the air or collect in storage receptacles for irrigation or other beneficial uses. LID strategies include, but are not limited to:

  1. Bioretention (rain gardens);
  2. Cisterns and rain barrels;
  3. Green roofs meeting the structural requirements of the building code;
  4. Roof leader disconnection;
  5. Permeable and porous paving;
  6. Vegetative swales and filter strips; tree preservation; and
  7. Volume retention suitable for previously developed sites.

If applicable, coordinate LID projects with the local Regional Water Quality Control Board, which may issue a permit or otherwise require LID.

Note: Further information on design of specific control measures may be found on U.S. EPA’s website, on SWRCB’s website and from local boards that require LID.

Manage 40 percent of the average annual rainfall on the site’s impervious surfaces through infiltration, reuse or evaportranspiration.

For buildings with over 10 tenant-occupants, provide changing/shower facilities for tenant-occupants only in accordance with Table A5.106.4.3 or document arrangements with nearby changing/shower facilities.

Note: Additional information on recommended bicycle accommodations may be obtained from Sacramento Area Bicycle Advocates.

TABLE A5.106.4.3
NUMBER OF TENANT-OCCUPANTSSHOWER/CHANGING FACILITIES REQUIRED22-TIER (12“ X 15“ X 72“) PERSONAL EFFECTS LOCKERS1, 2 REQUIRED
0-1000
11-501 unisex shower2
51-1001 unisex shower3
101-2001 shower stall per gender4
Over 2001 shower stall per gender for each 200 additional tenant-occupantsOne 2-tier locker for each 50 additional tenant-occupants
  1. One 2-tier locker serves two people. Lockers shall be lockable with either padlock or combination lock.
  2. Tenant spaces housing more than 10 tenant-occupants within buildings sharing common toilet facilities need not comply; however, such common shower facilities shall accommodate the total number of tenant-occupants served by the toilets and include a minimum of one unisex shower and two 2-tier lockers.
Provide designated parking for any combination of low-emitting, fuel-efficient and carpool/van pool vehicles as shown in Table A5.106.5.1.1 or A5.106.5.1.2.

Ten percent of total spaces. [BSCCG] Provide 10 percent of total designated parking spaces for any combination of low-emitting, fuel-efficient and carpool/van pool vehicles as follows:

TABLE A5.106.5.1.1
TOTAL NUMBER OF PARKING SPACESNUMBER OF REQUIRED SPACES
0-90
10-252
26-504
51-756
76-1009
101-15011
151-20018
201 and overAt least 10 percent of total

Provide 12 percent of total designated parking spaces for any combination of low-emitting, fuel-efficient, and carpool/van pool vehicles as follows:

TABLE A5.106.5.1.2
TOTAL NUMBER OF PARKING SPACESNUMBER OF REQUIRED SPACES
0-91
10-252
26-505
51-757
76-1009
101-15013
151-20019
201 and overAt least 12 percent of total

Paint, in the paint used for stall striping, the following characters such that the lower edge of the last word aligns with the end of the stall striping and is visible beneath a parked vehicle:

CLEAN AIR/
VANPOOL/EV

Note: Vehicles bearing Clean Air Vehicle stickers from expired HOV lane programs may be considered eligible for designated parking spaces.

Building managers may consult with local community Transit Management Associations (TMAs) for methods of designating qualifying vehicles, such as issuing parking stickers.

Notes:

  1. Information on qualifying vehicles, car labeling regulations and DMV CAV decals may be obtained from the following sources:

    1. California DriveClean.
    2. California Air Resources Board.
    3. U.S. EPA fuel economy regulations and standards.
    4. DMV Registration Operations.
  2. Purchasing policy and refueling sites for low emitting vehicles for state employees use can be found at the Department of General Services.
Construction shall comply with Section A5.106.5.3.1 and A5.106.5.3.2 to facilitate future installation of electric vehicle supply equipment (EVSE). When EVSE(s) is/are installed, it shall be in accordance with the California Building Code and the California Electrical Code and as follows:

Table A5.106.5.3.1 shall be used to determine the number of multiple charging spaces required for future installation of EVSE. Refer to Section 5.106.5.3.2 for design space requirements.

TABLE A5.106.5.3.1
TOTAL NUMBER OF ACTUAL PARKING SPACESTIER 1 NUMBER OF REQUIRED EV CHARGING SPACES
0-90
10-252
26-503
51-755
76-1007
101-15010
151-20014
201 and over8 percent of total1
  1. Calculation for spaces shall be rounded up to the nearest whole number.

Table A5.106.5.3.2 shall be used to determine if single or multiple charging space requirements apply for future installation of EVSE. When a single charging space is required, refer to Section 5.106.5.3.1 for design requirements. When multiple charging spaces are required, refer to Section 5.106.5.3.2 for design requirements.

TABLE A5.106.5.3.2
TOTAL NUMBER OF ACTUAL PARKING SPACESTIER 2 NUMBER OF REQUIRED EV CHARGING SPACES
0-91
10-252
26-504
51-756
76-1009
101-15012
151-20017
201 and over10 percent of total1
  1. Calculation for spaces shall be rounded up to the nearest whole number.
The service panel or subpanel circuit directory shall identify the reserved overcurrent protective device space(s) for future EV charging as “EV CAPABLE.” The raceway termination location shall be permanently and visibly marked as “EV CAPABLE.”

Future charging spaces qualify as designated parking as described in Section A5.106.5.1 Designated parking for clean air vehicles.

Notes:

  1. The California Department of Transportation adopts and publishes the California Manual on Uniform Traffic Control Devices (California MUTCD) to provide uniform standards and specifications for all official traffic control devices in California. Zero Emission Vehicle Signs and Pavement Markings can be found in the New Policies & Directives number 13-01. www.dot.ca.gov/hq/traffops/policy/13-01.pdf.
  2. See Vehicle Code Section 22511 EV charging spaces signage in offstreet parking facilities and for use of EV charging spaces.
  3. The Governor’s Office of Planning and Research published a Zero-Emission Vehicle Community Readiness Guidebook which provides helpful information for local governments, residents and businesses. www.opr.ca.gov/docs/ZEV_Guidebook.pdf.
Design parking capacity to meet but not exceed minimum local zoning requirements.

With the approval of the enforcement authority, employ strategies to reduce on-site parking area by

  1. Use of on street parking or compact spaces, illustrated on the site plan or
  2. Implementation and documentation of programs that encourage occupants to carpool, ride share or use alternate transportation.

Note: Strategies for programs may be obtained from local TMAs.

Meet requirements in the current edition of the California Energy Code and comply with either Section A5.106.7.1 or A5.106.7.2 for wall surfaces. If using vegetative shade, plant species documented to reach desired coverage within 5 years of building occupancy.
Provide vegetative or manmade shading devices for all fenestration on east-, south-, and west-facing walls.
Shading devices shall have 30-percent coverage to a height of 20 feet or to the top of the exterior wall, whichever is less. Calculate shade coverage on the summer solstice at 10 AM for east-facing walls and at 3 PM for west-facing walls.
Shading devices shall have 60-percent coverage to a height of 20 feet or to the top of the exterior wall, whichever is less.

Use wall surfacing with minimum SRI 25 (aged), for 75 percent of opaque wall areas.

Exception: Use of vegetated shade in Wildland-Urban Interface Areas as defined in Chapter 7A (Materials and Construction Methods for Exterior Wildfire Exposure) of the California Building Code shall meet the requirements of that chapter.

Note: If not available from the manufacturer, aged SRI value calculations may be found at the California Energy Commission’s web site at www.energy.ca.gov.

Reduce nonroof heat islands by Section A5.106.11.1 and roof heat islands by Section A5.106.11.2.

Use one or a combination of strategies 1 and 2 for 50 percent of site hardscape or put 50 percent of parking underground.

  1. Use light colored materials with an initial solar reflectance value of at least 30 as determined in accordance with American Society for Testing and Materials (ASTM) Standards E1918 or C1549.
  2. Use open-grid pavement system or pervious or permeable pavement system.

Use roofing materials having a minimum aged solar reflectance and thermal emittance complying with Sections A5.106.11.2.1 and A5.106.11.2.2 or a minimum aged Solar Reflectance Index (SRI) complying with Section A5.106.11.2.3 and as shown in Table A5.106.11.2.2 for Tier 1 or Table A5.106.11.2.3 for Tier 2.

Exceptions:

  1. Roof constructions that have a thermal mass over the roof membrane, including areas of vegetated (green) roofs, weighing at least 25 pounds per square foot.
  2. Roof area covered by building integrated solar photovoltaic and building integrated solar thermal panels.

Roofing materials shall have a minimum aged solar reflectance equal to or greater than the values specified in Table A5.106.11.2.2 for Tier 1 and Table A5.106.11.2.3 for Tier 2.

If Cool Roof Rating Council (CRRC) testing for aged reflectance is not available for any roofing products, the aged value shall be determined using the CRRC certified initial value using the equation ρaged = [0.2 + β [ρinitial – 0.2], where ρinitial = the initial solar reflectance and soiling resistance, β, listed by product type in Table A5.106.11.2.1.

Solar reflectance may also be certified by other supervisory entities approved by the Energy Commission pursuant to Title 24, Part 1, California Administrative Code.

TABLE A5.106.11.2.1

VALUES OF SOILING RESISTANCE, β, BY PRODUCT TYPE

PRODUCT TYPECRRC PRODUCT CATEGORYβ
Field-applied coatingField-applied coating0.65
OtherNot a field-applied coating0.70

Roofing materials shall have a CRRC initial or aged thermal emittance as determined in accordance with ASTM E408 or C1371 equal to or greater than those specified in Table A5.106.11.2.2 for Tier 1 and Table A5.106.11.2.3 for Tier 2.

Thermal emittance may also be certified by other supervisory entities approved by the Energy Commission pursuant to Title 24, Part 1, California Administrative Code.

TABLE A5.106.11.2.2

[BSC] TIER 1

ROOF SLOPECLIMATE ZONEMINIMUM AGED SOLAR REFLECTANCETHERMAL EMITTANCESRI
≤ 2:121–160.630.7575
> 2:121–160.200.7516

Solar Reflectance Index (SRI) equal to or greater than the values specified in Table A5.106.11.2.2 for Tier 1 and Table A5.106.11.2.3 for Tier 2 may be used as an alternative to compliance with the aged solar reflectance values and thermal emittance.

SRI values used to comply with this section shall be calculated using the Solar Reflectance Index (SRI) Calculation Worksheet (SRI-WS) developed by the California Energy Commission or in compliance with ASTM E1980-01 as specified in the California Energy Code, Section 118(i)3. Solar reflectance values used in the SRI-WS shall be based on the aged reflectance value of the roofing product or the equation in section A5.106.11.2.1 if the CRRC certified aged solar reflectance are not available. Certified Thermal emittance used in the SRI-WS may be either the initial value or the aged value listed by the CRRC.

Solar reflectance and thermal emittance may also be certified by other supervisory entities approved by the Commission pursuant to Title 24, Part 1, California Administrative Code.

Note: The Solar Reflectance Index Calculation Worksheet (SRI-WS) is available by contacting the Energy Standard Hotline at 1-800-772-3300, website at www.energy.ca.gov or by email at Title24@energy.state.ca.us.

TABLE A5.106.11.2.3

[BSC] TIER 2

ROOF SLOPECLIMATE ZONEMINIMUM AGED SOLAR REFLECTANCETHERMAL EMITTANCESRI
≤ 2:121–160.680.8582
> 2:121–160.280.8527

If no documentation is available, an inspection shall be conducted to ensure roofing materials meet cool roof aged solar reflectance and thermal emittance or SRI values.

CALIFORNIA GREEN BUILDING STANDARDS CODE – MATRIX ADOPTION TABLE

APPENDIX A5 – NONRESIDENTIAL VOLUNTARY MEASURES
DIVISION A5.2 – ENERGY EFFICIENCY

(Matrix Adoption Tables are non-regulatory, intended only as an aid to the user.

See Chapter 1 for state agency authority and building applications.)
Adopting agencyBSCBSC-CGSFMHCDDSAOSHPDBSCCDPHAGRDWRCECCASLSLC
121/ACACSS1234
Adopt entire CA chapter
Adopt entire chapter as amended (amended sections listed below)
Adopt only those sections that are listed belowX
Chapter/Section
A5.201.1X
A5.202.1 DefinitionsX
A5.203.1X
A5.203.1.1X
A5.203.1.1.1X
A5.203.1.1.2X
A5.203.1.1.3X
A5.203.1.2X
A5.203.1.2.1X
A5.203.1.2.2X
A5.211.1X
A5.211.1.1X
A5.211.3X
A5.212.1X
A5.212.1.1 and subsectionX
A5.212.1.2X
A5.212.1.4X
A5.213X

Division A5.2 ENERGY EFFICIENCY

For the purposes of mandatory energy efficiency standards in this code, the California Energy Commission will continue to adopt mandatory standards. It is the intent of these voluntary provisions to encourage local jurisdictions through codification to achieve exemplary performance in the area of building energy efficiency. Local jurisdictions adopting these voluntary provisions as mandatory local energy efficiency standards shall submit the required application and receive the required approval of the California Energy Commission in compliance with Chapter 10, Section 106 of the California Administrative Code, prior to enforcement. Once approval is granted by the Energy Commission, local jurisdictions shall file an ordinance expressly marking the local modifications along with findings and receive the required acceptance from the California Building Standards Commission in compliance with Section 101.7 of this code, prior to enforcement. (Chapter 10, Section 106 of the California Administrative Code is available at http://www.energy.ca.gov/title24/2016standards/)

The following terms are defined in Chapter 2.

ENERGY BUDGET.

GEOTHERMAL.

PROCESS.

SOLAR ACCESS.

TIME DEPENDENT VALUATION (TDV).

Nonresidential, high-rise residential and hotel/motel buildings that include lighting and/or mechanical systems shall comply with Sections A5.203.1.1 and either A5.203.1.2.1 or A5.203.1.2.2. Newly constructed buildings and additions are included in the scope of these sections. Buildings permitted without lighting or mechanical systems shall comply with Section A5.203.1.1 but are not required to comply with Sections A5.203.1.1.2 or A5.203.1.2.
Each of the following efficiency measures is required for all applicable components of the building project.
Newly installed outdoor lighting power shall be no greater than 90 percent of the Allowed Outdoor Lighting Power. The Allowed Outdoor Lighting Power calculation is specified in Title 24, Part 6, Section 140.7 “Requirements For Outdoor Lighting.”

Newly constructed restaurants 8,000 square feet or greater and with service water heaters rated 75,000 Btu/ h or greater shall install a solar water-heating system with a minimum solar savings fraction of 0.15.

Exceptions:

  1. Buildings with a natural gas service water heater with a minimum of 95-percent thermal efficiency.
  2. Buildings where greater than 75 percent of the total roof area has annual solar access that is less than 70 percent. Solar access is the ratio of solar insolation, including shade, to the solar insolation without shade. Shading from obstructions located on the roof or any other part of the building shall not be included in the determination of annual solar access.
Comply with one of the advanced efficiency levels indicated below.

Buildings complying with the first level of advanced energy efficiency shall have an Energy Budget that is no greater than indicated below, depending on the type of energy systems included in the building project. If the newly constructed building or addition does not include indoor lighting or mechanical systems, then no additional performance requirements above Title 24, Part 6 are required.

  1. For building projects that include indoor lighting or mechanical systems, but not both: No greater than 95 percent of the Title 24, Part 6, Energy Budget for the Standard Design Building as calculated by compliance software certified by the Energy Commission.
  2. For building projects that include indoor lighting and mechanical systems: No greater than 90 percent of the Title 24, Part 6 Energy Budget for the Standard Design Building as calculated by compliance software certified by the Energy Commission.

Buildings complying with the second level of advanced energy efficiency shall have an Energy Budget that is no greater than indicated below, depending on the type of energy systems included in the building project. If the newly constructed building or addition does not include indoor lighting or mechanical systems, then no additional performance requirements above Title 24, Part 6 are required.

  1. For building projects that include indoor lighting or mechanical systems, but not both: No greater than 90 percent of the Title 24, Part 6, Energy Budget for the Standard Design Building as calculated by compliance software certified by the Energy Commission.
  2. For building projects that include indoor lighting and mechanical systems: No greater than 85 percent of the Title 24, Part 6, Energy Budget for the Standard Design Building as calculated by compliance software certified by the Energy Commission.

Note: For Energy Budget calculations, high-rise residential and hotel/motel buildings are considered nonresidential buildings.

Use on-site renewable energy sources such as solar, wind, geothermal, low-impact hydro, biomass and bio-gas for at least 1 percent of the electric power calculated as the product of the building service voltage and the amperage specified by the electrical service overcurrent protection device rating or 1kW, (whichever is greater), in addition to the electrical demand required to meet 1 percent of the natural gas and propane use. The building project’s electrical service overcurrent protection device rating shall be calculated in accordance with the 2016 California Electrical Code. Natural gas or propane use is calculated in accordance with the 2016 California Plumbing Code.
Using a calculation method approved by the California Energy Commission, calculate the renewable on-site energy system to meet the requirements of Section A5.211.1, expressed in kW. Factor in net-metering, if offered by local utility, on an annual basis.
If offered by local utility provider, participate in a renewable energy portfolio program that provides a minimum of 50-percent electrical power from renewable sources. Maintain documentation through utility billings.
In buildings with more than one elevator or two escalators, provide systems and controls to reduce the energy demand of elevators and escalators as follows. Document systems operation and controls in the project specifications and commissioning plan.
Traction elevators shall have a regenerative drive system that feeds electrical power back into the building grid when the elevator is in motion.
A parked elevator shall turn off its car lights and fan automatically until the elevator is called for use.
An escalator shall have a VVVF motor drive system that is fully regenerative when the escalator is in motion.
Controls that reduce energy demand shall meet requirements of CCR, Title 8, Chapter 4, Subchapter 6 and shall not interrupt emergency operations for elevators required in CCR, Title 24, Part 2, California Building Code.

Design steel framing for maximum energy efficiency. Techniques for avoiding thermal bridging in the envelope include:

  1. Exterior rigid insulation;
  2. Punching large holes in the stud web without affecting the structural integrity of the stud;
  3. Spacing the studs as far as possible while maintaining the structural integrity of the structure; and
  4. Detailed design of intersections of wall openings and building intersections of floors, walls and roofs.

CALIFORNIA GREEN BUILDING STANDARDS CODE – MATRIX ADOPTION TABLE

APPENDIX A5 – NONRESIDENTIAL VOLUNTARY MEASURES DIVISION A5.3 – WATER EFFICIENCY AND CONSERVATION

(Matrix Adoption Tables are non-regulatory, intended only as an aid to the user.

See Chapter 1 for state agency authority and building applications.)
Adopting agencyBSCBSC-CGSFMHCDDSAOSHPDBSCCDPHAGRDWRCECCASLSLC
121/ACACSS1234
Adopt entire CA chapterX
Adopt entire chapter as amended (amended sections listed below)
Adopt only those sections that are listed below
Chapter/Section

Division A5.3 WATER EFFICIENCY AND CONSERVATION

The following words and terms shall, for the purposes of this chapter and as used elsewhere in this code, have the meanings shown herein.

COMPACT DISHWASHER.

MODEL WATER EFFICIENT LANDSCAPE ORDINANCE.

PLANTS.

POTABLE WATER.

RECYCLED WATER.

STANDARD DISHWASHER.

SUBMETER.

A schedule of plumbing fixtures and fixture fittings that will reduce the overall use of potable water within the building by 12 percent shall be provided. The reduction shall be based on the maximum allowable water use per plumbing fixture and fitting as required by the California Building Standards Code. The 12-percent reduction in potable water use shall be demonstrated by one of the following methods:

  1. Prescriptive method. Each plumbing fixture and fitting shall not exceed the maximum flow rate at greater than or equal to 12-percent reduction as specified in Table A5.303.2.3.1; or
  2. Performance method. A calculation demonstrating a 12-percent reduction in the building “water use baseline” as established in Table A5.303.2.2 shall be provided.

TABLE A5.303.2.3.1

FIXTURE FLOW RATES

FIXTURE TYPEBASELINE FLOW RATE2MAXIMUM FLOW RATE AT ≥ 12 PERCENT REDUCTION
Showerheads2.0 gpm @ 80 psi1.8 gpm @ 80 psi
Lavatory faucets nonresidential30.5 gpm @ 60 psi0.35 gpm @ 60 psi
Kitchen faucets31.8 gpm @ 60 psi1.6 gpm @ 60 psi
Wash fountains1.8 gallons/cycle/20 [rim space (in.) @ 60 psi]1.6 gpm/20 [rim space (in.) @ 60 psi]
Metering faucets0.20 gallons/cycle0.18 gallons/cycle
Metering faucets for wash fountains0.20 gallons/cycle/20 [rim space (in.) @ 60 psi]0.18 gallons/cycle 20 [rim space (in.) @ 60 psi]
Gravity tank type water closets1.28 gallons/flush1.12 gallons/flush1
Flushometer tank water closets1.28 gallons/flush1.12 gallons/flush1
Flushometer valve water closets1.28 gallons/flush1.12 gallons/flush1
Electromechanical hydraulic water closets1.28 gallons/flush1.12 gallons/flush1
Urinals0.5 or 0.1254 gallons/flush0.44 or 0.11 gallons/flush
  1. Includes water closets with an effective flush rate of 1.12 gallons or less when tested per ASME A 112.19.2 and ASME A 112.19.14.
  2. See Table A5.503.2.2 for additional notes and references.
  3. Where complying faucets are unavailable, aerators rated at 0.35 gpm or other means may be used to achieve reduction.
  4. Floor-mounted urinals @ 0.5 GPF or wall-mounted urinals @ 0.125 GPF.
A schedule of plumbing fixtures and fixture fittings that will reduce the overall use of potable water within the building by 20 percent shall be provided. A calculation demonstrating a 20-percent reduction in the building “water use baseline” as established in Table A5.303.2.2 shall be provided.
A schedule of plumbing fixtures and fixture fittings that will reduce the overall use of potable water within the building by 25 percent shall be provided. A calculation demonstrating a 25-percent reduction in the building “water use baseline” as established in Table A5.303.2.2 shall be provided.

Utilizing nonpotable water systems (such as captured rainwater, treated graywater and recycled water) intended to supply water closets, urinals, and other allowed uses, may be used in the calculations demonstrating the 12-, 20- or 25-percent reduction. The nonpotable water systems shall comply with the current edition of the California Plumbing Code.

TABLE A5.303.2.2

WATER USE BASELINE3

FIXTURE TYPEBASELINE FLOW RATEDURATIONDAILY USESOCCUPANTS2
Showerheads2.0 gpm @ 80 psi5 min.1X2a
Lavatory faucets nonresidential0.5 gpm @ 60 psi.25 min.3X
Kitchen faucets1.8 gpm @ 60 psi4 min.1X2b
Replacement aerators2 gpm @ 60 psiX
Wash fountains1.8 gpm/20 [rim space (in.) @ 60 psi]X
Metering faucets0.20 gallons/cycle.25 min.3X
Metering faucets for wash fountains0.20 gallons/cycle/20 [rim space (in.) @ 60 psi].25 min.1 male1 3 femaleX
Gravity tank type water closets1.28 gallons/flush1 flush1 male1 3 femaleX
Flushometer tank water closets1.28 gallons/flush1 flush1 male1 3 femaleX
Flushometer valve water closets1.28 gallons/flush1 flush1 male1 3 femaleX
Electromechanical hydraulic water closets1.28 gallons/flush1 flush1 male1 3 femaleX
Urinals0.5 or 0.1254 gallons/flush1 flush2 maleX
  1. The daily use number shall be increased to three if urinals are not installed in the room.
  2. Refer to Table A, Chapter 4, 2016 California Plumbing Code, for occupant load factors.

    1. Shower use by occupants depends on the type of use of a building or portion of a building, e.g., total occupant load for a health club, but only a fraction of the occupants in an office building as determined by the anticipated number of users.
    2. Kitchen faucet use is determined by the occupant load of the area served by the fixture.
  3. Use worksheet WS-1 to calculate baseline water use.
  4. Floor-mounted urinals @ 0.5 GPF or wall-mounted urinals @ 0.125 GPF.

Appliances and fixtures shall meet the following:

  1. Clothes washers shall have a maximum Water Factor (WF) that will reduce the use of water by 10 percent below the California Energy Commissions’ WF standards for commercial clothes washers located in Title 20 of the California Code of Regulations.
  2. Dishwashers shall meet the following water use standards:

    1. Residential—ENERGY STAR.

      1. Standard Dishwashers – 4.25 gallons per cycle.
      2. Compact Dishwashers – 3.5 gallons per cycle.
    2. Commercial—Shall be in accordance with ENERGY STAR requirements. Refer to Table A5.303.3.
  3. Ice makers shall be air cooled.
  4. Food steamers shall be connectionless or boilerless – and shall consume no more than 2 gallons of water per pan per hour, including condensate water, for batch type steamers, and no more than 5 gallons of water per pan per hour, including condensate water, for cook to order steamers.
  5. The use and installation of water softeners that discharge to the community sewer system may be limited or prohibited by local agencies if certain conditions are met.
  6. Combination ovens shall use a maximum of 1.5 gallons of water per hour per pan, including condensate water.
  7. Commercial pre-rinse spray valves manufactured on or after January 1, 2006 shall function at equal to or less than 1.6 gpm (0.10 L/s) at 60 psi (414 kPa) and

    1. Be capable of cleaning 60 plates in an average time of not more than 30 seconds per plate.
    2. Be equipped with an integral automatic shutoff.
    3. Operate at static pressure of at least 30 psi (207 kPa) when designed for a flow rate of 1.3 gpm (0.08 L/s) or less.
  8. Food waste pulping systems shall use no more than 2 gpm of potable water.

    1. 8.1. Note: potable water excludes on-site graywater use, such as dishwasher discharge water.

TABLE A5.303.3

COMMERCIAL DISHWASHER WATER USE

TYPEHIGH-TEMPERATURE— MAXIMUM GALLONS PER RACKLOW-TEMPERATURE— MAXIMUM GALLONS PER RACK
Single Tank Conveyor0.70 (2.6 L)≤ 0.79 (3 L)
Multiple Tank Conveyor≤ 0.54 (2 L)≤ 0.54 (2 L)
Stationary Single Tank Door≤ 0.89 (3.4 L)≤ 1.18 (4.5 L)
Under Counter≤ 0.86 (3.3 L)≤ 1.19 (4.5 L)
Pot, Pan, and Utensil≤ 0.58 GPSF≤ 0.58 GPSF
Single Tank Flight TypeGPH ≤ 2.975x + 55.00GPH ≤ 2.975x + 55.00
Multiple Tank Flight TypeGPH ≤ 4.96x + 17.00GPH ≤ 4.96x + 17.00

Note: GPSF = gallons per square foot of rack; GPH = gallons per hour;

X = square feet of conveyor belt/minute (max conveyor speed sf/min as tested and certified to NSF/ANSI Standard 3)

Nonwater supplied urinals are installed in accordance with the California Plumbing Code.

Where approved, hybrid urinals, as defined in Chapter 2, shall be considered waterless urinals.

New buildings and facilities shall be dual plumbed for potable and recycled water systems for toilet flushing when recycled water is available as determined by the enforcement authority.
For new water service not subject to the provisions of Water Code Section 535, separate meters or submeters shall be installed for indoor and outdoor potable water use for landscaped areas of at least 500 square feet but not more than 1,000 square feet.
Restore all landscape areas disturbed during construction by planting with local adaptive and/or noninvasive vegetation.

On previously developed or graded sites, restore or protect at least 50 percent of the site area with adaptive and/or noninvasive vegetation. Projects complying with Section A5.106.3, Item 3 may apply vegetated roof surface to this calculation if the roof plants meet the definition of adaptive and noninvasive.

Exception: Area of the building footprint is excluded from the calculation.

Install a graywater collection system for onsite subsurface irrigation using gray-water collected from bathtubs, showers, bathroom wash basins and laundry water. See California Plumbing Code.
Nonpotable water systems for indoor and outdoor use shall comply with the current edition of the California Plumbing Code.

Irrigation systems regulated by a local water efficient landscape ordinance or by the California Department of Water Resources Model Water Efficient Landscape Ordinance (MWELO) shall use recycled water.

CALIFORNIA GREEN BUILDING STANDARDS CODE – MATRIX ADOPTION TABLE

APPENDIX A5 – NONRESIDENTIAL VOLUNTARY MEASURES DIVISION A5.4 – MATERIAL CONSERVATION AND RESOURCE EFFICIENCY

(Matrix Adoption Tables are non-regulatory, intended only as an aid to the user.

See Chapter 1 for state agency authority and building applications.)
Adopting agencyBSCBSC-CGSFMHCDDSAOSHPDBSCCDPHAGRDWRCECCASLSLC
121/ACACSS1234
Adopt entire CA chapterX
Adopt entire chapter as amended (amended sections listed below)
Adopt only those sections that are listed below
Chapter/Section

Division A5.4 MATERIAL CONSERVATION AND RESOURCE EFFICIENCY

The provisions of this chapter shall outline means of achieving material conservation and resource efficiency through reuse of existing building stock and materials; use of recycled, regional, rapidly renewable and certified wood materials; and employment of techniques to reduce pollution through recycling of materials.

The following terms are defined in Chapter 2.

BUILDING COMMISSIONING.

EMBODIED ENERGY.

EUTROPHICATION.

LIFE CYCLE ASSESSMENT (LCA).

LIFE CYCLE INVENTORY (LCI).

OVE.

POSTCONSUMER CONTENT.

PRECONSUMER (or POSTINDUSTRIAL) CONTENT.

RECYCLED CONTENT.

RECYCLED CONTENT VALUE (RCV).

Employ advanced wood framing techniques or OVE, as recommended by the U.S. Department of Energy’s Office of Building Technology, State and Community Programs and as permitted by the enforcing agency.
The OVE selected shall not conflict with structural framing methods or fire-rated assemblies required by the California Building Code.

Advanced framing techniques include the following:

  1. Building design using 2-foot modules;
  2. Spacing wall studs up to 24 inches on center;
  3. Spacing floor and roof framing members up to 24 inches on center;
  4. Using 2-stud corner framing and drywall clips or scrap lumber for drywall backing;
  5. Eliminating solid headers in non-load-bearing walls;
  6. Using in-line framing, aligning floor, wall and roof framing members vertically for direct transfer of loads; and
  7. Using single lumber headers and top plates where appropriate.

Note: Additional information can be obtained from the U.S. DOE Energy Efficiency and Renewable Energy (EERE) website.

Compared to other products in a given product category, select building materials or products for permanent installation on the project that have been harvested or manufactured in California or within 500 miles of the project site.

  1. For those materials locally manufactured, select materials manufactured using low embodied energy or those that will result in net energy savings over their useful life.
  2. Regional materials shall make up at least 10 percent, based on cost, of total materials value.
  3. If regional materials make up only part of a product, their values are calculated as percentages based on weight.
  4. Provide documentation of the origin, net projected energy savings and value of regional materials.
Select bio-based building materials and products made from solid wood, engineered wood, bamboo, wool, cotton, cork, straw, natural fibers, products made from crops (soy-based, corn-based) and other bio-based materials with at least 50-percent bio-based content.
Certified wood is an important component of green building strategies and the California Building Standards Commission will continue to develop a standard through the next code cycle.
Use materials made from plants harvested within a ten-year cycle for at least 2.5 percent of total materials value, based on estimated cost.

Use salvaged, refurbished, refinished or reused materials for a minimum of 5 percent of the total value, based on estimated cost of materials on the project. Provide documentation as to the respective values.

Note: Sources of some reused materials can be found at CalRecycle. See also Appendix A5, Division A5.1, Section A5.105.1 for on-site materials reuse.

Use materials, equivalent in performance to virgin materials with a total (combined) recycled content value (RCV) of:

Tier 1. The RCV shall not be less than 10 percent of the total material cost of the project, or use two products which meet the minimum recycled content levels in Table A5.405.4 for at least 75%, by cost, of all products in that category in the project.

(Equation A5.4-1)

Tier 2. The RCV shall not be less than 15 percent of the total material cost of the project, or use three products which meet the minimum recycled content levels in Table A5.405.4 for at least 75%, by cost, of all products in that category in the project.

(Equation A5.4-2)

For the purposes of this section, materials used as components of the structural frame shall not be used to calculate recycled content. The structural frame includes the load bearing structural elements such as wall studs, plates, sills, columns, beams, girders, joists, rafters and trusses.

Notes:

  1. Sample forms which allow user input and automatic calculation are located at www.hcd.ca.gov/CALGreen.html and may be used to simplify documenting compliance with this section and for calculating recycled content value of materials or assembly products.
  2. Sources and recycled content of some recycled materials can be obtained from CalRecycle if not provided by the manufacturer.

TABLE A5.405.4

MINIMUM RECYCLED CONTENT LEVELS

MATERIAL/ PRODUCT TYPEMINIMUM TOTAL RECYCLED CONTENTMINIMUM POST-CONSUMER RECYCLED CONTENT
Insulation, fiberglass30%30%
Insulation, cellulose75%75%
Exterior Paint, latex50%50%
Carpet, nylon10%10%
Compost80%80%
Mulch80%80%
Acoustical ceiling panels60%
Drywall, gypsum4%4%
Aggregate base80%80%

Total material cost is the total estimated or actual cost of materials and assembly products used in the project. The required total recycled content value for the project (in dollars) shall be determined by Equation A5.4-1 or A5.4-2.

Total material cost shall be calculated by using one of the methods specified below:

  1. Simplified method. To obtain the total cost of the project multiply the square footage of the structure by the square foot valuation established by the enforcing agency. The total material cost is 45 percent of the total cost of the project. Use Equations A5.4-3A or A5.4-3B to determine total material costs using the simplified method.

    (Equation A5.4-3A)

    (Equation A5.4-3B)

  2. Detailed method. To obtain the total cost of the project, add the estimated and/or actual costs of materials used for the project including the structure (steel, concrete, wood or masonry); the enclosure (roof, windows, doors and exterior walls); the interior walls, ceilings and finishes (gypsum board, ceiling tiles, etc.). The total estimated and/or actual costs shall not include fees, labor and installation costs, overhead, appliances, equipment, furniture or furnishings.

Total RCV may be determined either by dollars or percentage as noted below.

  1. Total recycled content value for the project (in dollars). This is the sum of the recycled content value of the materials and/or assemblies considered and shall be determined by Equation A5.4-4. The result of this calculation may be directly compared to Equations A5.4-1 and A5.4-2 to determine compliance with Tier 1 or Tier 2 prerequisites.

    (Equation A5.4-4)

  2. Total recycled content value for the project (by percentage). This is expressed as a percentage of the total material cost and shall be determined by Equations A5.4-4 and A5.4-5. The result of this calculation may be directly compared for compliance with Tier 1 (10 percent) or Tier 2 (15 percent) prerequisites.

    (Equation A5.4-5)

The recycled content value of each material (RCVM) is calculated by multiplying the cost of material, as defined by the recycled content. See Equations A5.4-6 and A5.4-7.

(Equation A5.4-6)

(Equation A5.4-7)

Notes:

  1. If the postconsumer and preconsumer recycled content is provided in pounds, Equation A5.4-7 may be used, but the final result (in pounds) must be multiplied by 100 to show RCM as a percentage.
  2. If the manufacturer does not separately identify the pre-consumer and post-consumer recycled content of a material but reports it as a total single percentage, the total amount shall be considered

    preconsumer recycled material.

Recycled content value of assemblies is calculated by multiplying the total cost of assembly by the total recycled content of the assembly (RCA), and shall be determined by Equation A5.4-8.

(Equation A5.4-8)

If not provided by the manufacturer, Total RCA (percent) is the sum (Σ) of the Proportional Recycled Content (PRCM) of each material in the assembly. RCA shall be determined by Equation A4.4-9.

(Equation A5.4-9)

PRCM of each material may be calculated by one of two methods using the following formulas:

Method 1: Recycled content (Postconsumer and Preconsumer) of each material provided in percentages

(Equation A5.4-10)

(Equation A5.4-11)

(See Equation A5.4-7)

Method 2: Recycled content (Postconsumer and Preconsumer) provided in pounds

(Equation A5.4-12)

(Equation A5.4-13)

Note: If the manufacturer does not separately identify the pre-consumer and post-consumer recycled content of a material but reports it as a total single percentage, the total amount shall be considered preconsumer recycled material.

When Supplementary Cementitious Materials (SCMs), such as fly ash or ground blast furnace slag cement, are used in concrete, an alternate method of calculating and reporting recycled content in concrete products shall be permitted. When determining the recycled content value, the percent recycled content shall be multiplied by the cost of the cementitious materials only, not the total cost of the concrete.
Use cement and concrete made with recycled products and complying with the following sections.

Cement shall comply with one of the following standards:

  1. Portland cement shall meet ASTM C150, Standard Specification for Portland Cement.
  2. Blended cement shall meet ASTM C595, Standard Specification for Blended Hydraulic Cement or ASTM C1157, Standard Performance Specification for Hydraulic Cement.
  3. Other Hydraulic Cements shall meet ASTM C1157, Standard Performance Specification for Hydraulic Cement.
Unless otherwise directed by the Engineer of Record, use concrete manufactured with cementitious materials in accordance with Sections A5.405.5.2.1 and A5.405.5.2.1.1, as approved by the enforcing agency.

Use concrete made with one or more supplementary cementitious materials (SCM) conforming to the following standards:

  1. Fly ash conforming to ASTM C618, Specification for Coal Fly Ash and Raw or Calcined Natural Pozzolan for Use in Concrete.
  2. Slag cement (GGBFS) conforming to ASTM C989, Specification for Use in Concrete and Mortars.
  3. Silica fume conforming to ASTM C1240, Specification for Silica Fume Used in Cementitious Mixtures.
  4. Natural pozzolan conforming to ASTM C618, Specification for Coal Fly Ash and Raw or Calcined Natural Pozzolan for Use in Concrete.
  5. Blended supplementary cementitious materials conforming to ASTM C1697, Standard Specification for Blended Supplementary Cementitious Materials. The amount of each SCM in the blend will be used separately in calculating Equation A5.4-1. If Class C fly ash is used in the blend, it will be considered to be “SL” for the purposes of satisfying the equation.
  6. Ultra-fine fly ash (UFFA) conforming to ASTM C618, Specification for Coal Fly Ash and Raw or Calcined Natural Pozzolan for Use in Concrete and the following chemical and physical requirements:

    Chemical RequirementsPercent
    Sulfur Trioxide (SO3)1.5 max.
    Loss on ignition1.2 max.
    Available Alkalies (as Na2O) equivalent1.5 max.
    Physical RequirementsPercent
    Particle size distribution
      Less than 3.5 microns50
      Less than 9.0 microns90
    Strength Activity Index with portland cement
      7 days95 (minimum % of control)
      28 days110 (minimum % of control)
    Expansion at 16 days when testing job materials in conformance with ASTM C1567*0.10 max.

    * In the test mix, cement shall be replaced with at least 12% UFFA by weight.

  7. Metakaolin conforming to ASTM C618, Specification for Coal Fly Ash and Raw or Calcined Natural Pozzolan for Use in Concrete, the following chemical and physical requirements:

    Chemical RequirementsPercent
    Silicon Dioxide (SiO2) + Aluminum Oxide (Al2O3)92.0 min.
    Calcium Oxide (CaO)1.0 max.
    Sulfur Trioxide (SO3)1.0 max.
    Loss on ignition1.2 max.
    Available Alkalies (as Na2O) equivalent1.0 max.
    Physical RequirementsPercent
    Particle size distribution
      Less than 45 microns95
    Strength Activity Index with portland cement
      7 days100 (minimum % of control)
      28 days100 (minimum % of control)
  8. Other materials with comparable or superior environmental benefits, as approved by the Engineer of Record and enforcing authority.

Use any combination of one or more SCM, satisfying Equation A5.4-14. When ASTM C595 or ASTM C1157 cement is used, the amount of SCM in these cements shall be used in calculating Equation A5.4-14.

Exception: Minimums in mix designs approved by the Engineer of Record may be lower where high early strength is needed for concrete products or to meet an accelerated project schedule.

(Equation A5.4-14)

where:

F =Fly ash, natural pozzolan or other approved SCM as a percent of total cementitious material for concrete on the project.
SL =GGBFS, as a percent of total cementitious material for concrete on the project.
UF=Silica fume, metakaolin or UFFA, as a percent of total cementitious material for concrete on the project.
Any of the following measures shall be permitted to be employed for the production of cement or concrete, depending on their availability and suitability, in conjunction with Section A5.405.5.2.
The following measures shall be permitted to be used in the manufacture of cement.
The use of alternative fuels where permitted by state or local air quality standards.
Alternate electric power generated at the cement plant and/or green power purchased from the utility meeting the requirements of Section A5.211.
The following measures shall be permitted to be used in the manufacture of concrete.
Renewable or alternative energy meeting the requirements of Section A5.211.

Concrete made with one or more of the following materials:

  1. Blast furnace slag as a lightweight aggregate in unreinforced concrete.
  2. Recycled concrete that meets grading requirements of ASTM C33, Standard Specification for Concrete Aggregates.
  3. Other materials with comparable or superior environmental benefits, as approved by the engineer and enforcing authority.
Water recycled by the local water purveyor or water reclaimed from manufacturing processes and conforming to ASTM C1602, Standard Specification for Mixing Water Used in the Production of Hydraulic Cement Concrete.
Concrete elements designed to reduce their total size compared to standard 3,000 psi concrete, thereby reducing the total volume of cement, aggregate and water used on the project, as approved by the Engineer of Record.
Compared to other products in a given product category, choose materials proven to be characterized by one or more of the following.
Select materials for longevity and minimal deterioration under conditions of use.
Select materials that require little, if any, finishing. For those with surface protection, choose materials that do not require frequent applications of toxic or malodorous finishes.
Select materials that can be reused or recycled at the end of their service life in the project.
Divert to recycle or salvage at least 65 percent of nonhazardous construction and demolition waste generated at the site. Any mixed recyclables that are sent to mixed-waste recycling facilities shall include a qualified third party verified facility average diversion rate. Verification of diversion rates shall meet minimum certification eligibility guidelines, acceptable to the local enforcing agency.
Divert to recycle or salvage at least 80 percent of nonhazardous construction and demolition waste generated at the site.

A copy of the completed waste management report or documentation of certification of the waste management company utilized shall be provided.

Exceptions:

  1. Excavated soil and land-clearing debris.
  2. Alternate waste reduction methods developed by working with local agencies if diversion or recycle facilities capable of compliance with this item do not exist.
  3. Demolition waste meeting local ordinance or calculated in consideration of local recycling facilities and markets.
Life cycle assessment shall be ISO 14044 compliant. The service life of the building and materials assemblies shall not be less than 60 years unless designated in the construction documents as having a shorter service life as approved by the enforcing agency.
Conduct a whole building life assessment, including operating energy, showing that the building project achieves at least a 10 percent improvement for at least three of the impacts listed in Section A5.409.2.2, one of which shall be climate change, compared to a reference building of similar size, function, complexity and operating energy performance, and meeting the 2016 California Energy Code at a minimum.

The building envelope, structural elements, including footings and foundations, interior ceilings, walls, and floors; and exterior finishes shall be considered in the assessment.

Exceptions:

  1. Plumbing, mechanical and electrical systems and controls; fire and smoke detection and alarm systems and controls; and conveying systems.
  2. Interior finishes are not required to be included.

Notes:

  1. Software for calculating whole building life cycle assessments includes those found at the Athena Institute website (Impact Estimator software), the PE International website (GaBi software), and the PRe Consultants website (SimaPro software).
  2. Interior finishes, if included, may be assessed using the NIST BEES tool.

Select from the following impacts in the assessment:

  1. Climate change (greenhouse gases).
  2. Fossil fuel depletion.
  3. Stratospheric ozone depletion.
  4. Acidification of land and water sources.
  5. Eutrophication.
  6. Photochemical oxidants (smog).

If whole building analysis of the project is not elected, select a minimum of 50 percent of materials or assemblies based on life cycle assessment of at least three of the impacts listed in Section A5.409.2.2, one of which shall be climate change.

Note: Software for calculating life cycle assessments for assemblies and materials may be found at the Athena Institute web site and the NIST BEES web site.

Performance of a life cycle assessment completed in accordance with Section A5.409.2 may be substituted for other prescriptive Material Conservation and Resource Efficiency provisions of Division A5.4, including those made mandatory through local adoption of Tier 1 or Tier 2 in Division A5.6.

Documentation of compliance shall be provided as follows:

  1. The assessment is performed in accordance with ISO 14044.
  2. The project meets the requirements of other parts of Title 24.
  3. A copy of the analysis shall be made available to the enforcement authority.
  4. A copy of the analysis and any maintenance or training recommendations shall be included in the operation and maintenance manual.

CALIFORNIA GREEN BUILDING STANDARDS CODE – MATRIX ADOPTION TABLE

APPENDIX A5 – NONRESIDENTIAL VOLUNTARY MEASURES
DIVISION A5.5 – ENVIRONMENTAL QUALITY

(Matrix Adoption Tables are non-regulatory, intended only as an aid to the user.

See Chapter 1 for state agency authority and building applications.)
Adopting agencyBSCBSC-CGSFMHCDDSAOSHPDBSCCDPHAGRDWRCECCASLSLC
121/ACACSS1234
Adopt entire CA chapter
Adopt entire chapter as amended (amended sections listed below)
Adopt only those sections that are listed belowXX
Chapter/Section
A5.501.1X
A5.502.1 DefinitionsX
A5.504.1X
A5.504.1.1, Items 1 &2X
A5.504.1.2X
A5.504.2X
A5.504.2.1 and subsectionsX
A5.504.4.5.1X
A5.504.4.7X
A5.504.4.7.1X
A5.504.4.7.2X
A5.504.4.8X
A5.504.4.8.1X
A5.504.4.8.2X
A5.504.4.9X
A5.504.4.9.1X
A5.504.5X
A5.504.5.1X
A5.504.5.2X
A5.504.5.3.1X
A5.504.5.3.1.1X
Table A5.504.8.5X
A5.507.1 and subsectionsX
A5.507.2X
A5.507.3 and subsectionsX
A5.507.5X
A5.508X

Division A5.5 ENVIRONMENTAL QUALITY

The provisions of this chapter shall outline means of reducing the quantity of air contaminants that are odorous, irritating and/or harmful to the comfort and well-being of a building’s installers, occupants and neighbors.

The following terms are defined in Chapter 2.

INTERIOR, BUILDING.

MERV. [BSC]

MULTI-OCCUPANT SPACES.

NO ADDED FORMALDEHYDE (NAF) BASED RESINS.

SINGLE OCCUPANT SPACES.

ULTRA-LOW EMITTING FORMALDEHYDE (ULEF) RESINS.

Maintain IAQ as provided in Sections A5.504.1.1 and A5.504.1.2.

Provide temporary ventilation during construction in accordance with Section 120.1 (Requirements for Ventilation) of the California Energy Code, CCR, Title 24, Part 6 and Chapter 4 of CCR, Title 8 and as follows:

  1. Ventilation during construction shall be achieved through openings in the building shell using fans to produce a minimum of three air changes per hour.
  2. If the building is occupied during demolition or construction, meet or exceed the recommended Control Measures of the Sheet Metal and Air Conditioning Contractors’ National Association (SMACNA) IAQ Guidelines for Occupied Buildings under Construction, 1995, Chapter 3.

Employ additional measures as follows:

  1. When using generators to generate temporary power, use generators meeting the requirements of CCR, Title 13, Chapter 9 or local ordinance, whichever is more stringent.
  2. Protect on-site absorbent materials from moisture. Remove and replace any materials with evidence of mold, mildew or moisture infiltration.
  3. Store odorous and high VOC-emitting materials off-site, without packaging, for a sufficient period to allow odors and VOCs to disperse.
  4. When possible, once materials are on the jobsite, install odorous and high VOC-emitting materials prior to those that are porous or fibrous.
  5. Clean oil and dust from ducts prior to use.

After all interior finishes have been installed, flush out the building by supplying continuous ventilation with all air handling units at their maximum outdoor air rate and all supply fans at their maximum position and rate for at least 14 days.

  1. During this time, maintain an internal temperature of at least 60°F and relative humidity no higher than 60 percent. If extenuating circumstances make these temperature and humidity limits unachievable, the flush-out may be conducted under conditions as close as possible to these limits, provided that documentation of the extenuating circumstances is provided in writing.
  2. Occupancy may start after 4 days, provided flush-out continues for the full 14 days. During occupied times, the thermal comfort conditions of Title 24 must be met.
  3. For buildings that rely on natural ventilation, exhaust fans and floor fans must be used to improve air mixing and removal during the 14-day flush-out and windows should remain open.
  4. Do not “bake out” the building by increasing the temperature of the space.
  5. If continuous ventilation is not possible, flush-out air must total the equivalent of 14 days of maximum outdoor air. The equivalent of 14 days of maximum outdoor air (the target air volume) shall be calculated by multiplying the maximum feasible air flow rate (in ft3/m) by 14 days (20,160 minutes). The air volumes for each period of ventilation are then calculated and summed and the flush-out continues until the total equals the target air volume.
If the engineer determines that building flush-out pursuant to Section A5.504.2 is not feasible, a testing alternative may be employed after all interior finishes have been installed, using testing protocols recognized by the United States Environmental Protection Agency (U.S. EPA).

Allowable levels of contaminant concentrations measured by testing shall not exceed the following:

  1. Carbon Monoxide (CO): 9 parts per million, not to exceed outdoor levels by 2 parts per million;
  2. Formaldehyde: 27 parts per billion;
  3. Particulates (PM10): 50 micrograms per cubic meter;
  4. 4-Phenylcyclohexene (4-PCH), if fabrics and carpets with styrene butadiene rubber (SBR) latex backing, are installed: 6.5 micrograms per cubic meter; and
  5. Total Volatile Organic Compounds (TVOC): 300 micrograms per cubic meter.

Testing of indoor air quality should include the following elements:

  1. The contaminant sampling and averaging times and the measurement methods should be sufficient to achieve a Limit of Detection that is below the maximum allowable concentrations.
  2. Testing should be conducted with the HVAC system operated at the minimum design outdoor air ventilation rate.
  3. Air samplers and monitors should be located near likely sources of formaldehyde and other volatile organic compounds, at a height of 3 to 6 feet from the floor and well away from walls and air diffusers.
  4. The test protocols should be justified with documentation to show that appropriate sampling methods and times were used.

For each sampling area of the building exceeding the maximum concentrations specified in Section A5.504.2.1.1, flush out with outside air and retest samples taken from the same area. Repeat the procedures until testing demonstrates compliance.

Note: U.S. EPA-recognized testing protocols may be found on the Air Resources Board web site.

Use composite wood products approved by the California Air Resources Board (ARB) as no-added formaldehyde (NAF) based resins or ultra-low emitting formaldehyde (ULEF) resins.

Notes:

  1. See Title 17, Section 93120.3(c) and (d), respectively.
  2. Documentation must be provided verifying that materials are certified to meet the pollutant emission limits. A list of manufacturers and their NAF and ULEF certified materials is provided at: http://www.arb.ca.gov/toxics/compwood/naf_ulef/listofnaf_ulef.htm.

For 90 percent of floor area receiving resilient flooring, install resilient flooring that is:

  1. Certified under the Resilient Floor Covering Institute (RFCI) FloorScore program;
  2. Compliant with the VOC-emission limits and testing requirements specified in the California Department of Public Health’s 2010 Standard Method for the Testing and Evaluation Chambers, Version 1.1, February 2010;
  3. Compliant with the Collaborative for High Performance Schools California (CA-CHPS) Criteria Interpretation for EQ 7.0 and EQ 7.1 (formerly EQ 2.2) dated July 2012 and listed in the CHPS High Performance Product Database; or
  4. Products certified under UL GREENGUARD Gold (formerly the Greenguard Children’s & Schools Program).

For 100 percent of floor area receiving resilient flooring, install resilient flooring that is:

  1. Certified under the Resilient Floor Covering Institute (RFCI) FloorScore program;
  2. Compliant with the VOC-emission limits and testing requirements specified in the California Department of Public Health’s 2010 Standard Method for the Testing and Evaluation Chambers, Version 1.1, February 2010;
  3. Compliant with the Collaborative for High Performance Schools California (CA-CHPS) Criteria Interpretation for EQ 7.0 and EQ 7.1 (formerly EQ2.2) dated July 2012 and listed in the CHPS High Performance Product Database; or
  4. Products certified under UL GREENGUARD Gold (formerly the Greenguard Children’s & Schools Program).

Exception: Allowance may be permitted in Tier 2 for up to 5-percent specialty purpose flooring.

Documentation shall be provided verifying that resilient flooring materials meet the pollutant emission limits.

Comply with the following standards:

  1. Chapters 12-13 (Standards for Insulating Material) in Title 24, Part 12, the California Referenced Standards Code,
  2. The VOC-emission limits defined in 2009 CHPS criteria and listed on its High Performance Products Database.
  3. California Department of Public Health 2010 Standard Method for the Testing and Evaluation of Volatile Organic Chemical Emissions from Indoor Sources Using Environmental Chambers, Version 1.1, February 2010 (also known as Specification 01350.)
Thermal insulation, No-added Formaldehyde. Install thermal insulation which complies with Tier 1 plus does not contain any added formaldehyde.
Documentation shall be provided verifying that thermal insulation materials meet the pollutant emission limits.
Comply with Chapter 8 in Title 24, Part 2, the California Building Code and with the VOC-emission limits defined in the 2009 CHPS criteria and listed on its High Performance Products Database.

Documentation shall be provided verifying that acoustical finish materials meet the pollutant emission limits.

Note: Products compliant with CHPS criteria certified under the Greenguard Children & Schools program may also be used.

Minimize and control pollutant entry into buildings and cross-contamination of regularly occupied areas.

Install permanent entry-way systems measuring at least six feet in the primary direction of travel to capture dirt and particulates at entry-ways directly connected to the outdoors.

  1. Qualifying entryways are those that serve as regular entry points for building users.
  2. Acceptable entryway systems include, but are not limited to, permanently installed grates, grilles or slotted systems that allow cleaning underneath.
  3. Roll-out mats are acceptable only when maintained regularly by janitorial contractors as documented in service contract or by in-house staff as documented by written policies and procedures.

In rooms where activities produce hazardous fumes or chemicals, such as garages, janitorial or laundry rooms and copy or printing rooms, exhaust them and isolate them from their adjacent rooms.

  1. Exhaust each space with no air recirculation in accordance with ASHRAE 62.1, Table 6-4 to create negative pressure with respect to adjacent spaces with the doors to the room closed.
  2. For each space, provide self-closing doors and deck to deck partitions or a hard ceiling.
  3. Install low-noise, vented range hoods for all cooking appliances and in laboratory or other chemical mixing areas.
In mechanically ventilated buildings, provide regularly occupied areas of the building with air filtration media for outside and return air prior to occupancy that provides at least a Minimum Efficiency Reporting Value (MERV) of 11.
In mechanically ventilated buildings, provide regularly occupied areas of the building with air filtration media for outside and return air prior to occupancy that provides at least a Minimum Efficiency Reporting Value (MERV) of 13.
Provide controls in the workplace as described in Sections A5.507.1.1 and A5.507.1.2.
Provide individual controls that meet energy use requirements in the California Energy Code in accordance with Sections A5.507.1.1.1 and A5.507.1.1.2.
Provide individual task lighting and/or daylighting controls for at least 90 percent of the building occupants.

Provide individual thermal comfort controls for at least 50 percent of the building occupants.

  1. Occupants shall have control over at least one of the factors of air temperature, radiant temperature, air speed and humidity as described in ASHRAE 55-2004.
  2. Occupants inside 20 feet of the plane of and within 10 feet either side of operable windows can substitute windows to control thermal comfort. The areas of operable window must meet the requirements of Section 120.1 (Requirement for Ventilation) of the California Energy Code.
Provide lighting and thermal comfort system controls for all shared multi-occupant spaces, such as classrooms and conference rooms.

Provide daylit spaces as required for top-lighting and sidelighting in the California Energy Code. In constructing a design, consider the following:

  1. Use of light shelves and reflective room surfaces to maximize daylight penetrating the rooms
  2. Means to eliminate glare and direct sun light, including through skylights
  3. Use of photosensors to turn off electric lighting when daylight is sufficient
  4. Not using diffuse daylighting glazing where views are desired
Achieve direct line of sight to the outdoor environment via vision glazing between 2 feet 6 inches and 7 feet 6 inches above finish floor for building occupants in 90 percent of all regularly occupied areas as demonstrated by plan view and section cut diagrams.
Entire areas of interior office spaces may be included in the calculation if at least 75 percent of each area has direct line of sight to perimeter vision glazing.

Include in the calculation the square footage with direct line of sight to perimeter vision glazing.

Exceptions to Sections A5.507.2 and A5.507.3. Copy/ printing rooms, storage areas, mechanical spaces, restrooms, auditoria and other intermittently or infrequently occupied spaces or spaces where daylight would interfere with use of the space.

Public Schools and Community Colleges: Unoccupied, furnished classrooms must have a maximum background noise level of no more than 45 dBA LAeq and a maximum (unoccupied, furnished) reverberation of 0.6-second time for classrooms with less than 10,000 cubic feet and a maximum (unoccupied, furnished) reverberation of 0.7-second time for classroom volumes with between 10,000 cubic feet and 20,000 cubic feet.
Install HVAC and refrigeration equipment that do not contain HCFCs.

Install HVAC complying with either of the following:

  1. Install HVAC, refrigeration and fire suppression equipment that do not contain HFCs or that do not contain HFCs with a global warming potential greater than 150.
  2. Install HVAC and refrigeration equipment that limit the use of HFC refrigerant through the use of a secondary heat transfer fluid with a global warming potential no greater than 1.

CALIFORNIA GREEN BUILDING STANDARDS CODE – MATRIX ADOPTION TABLE

APPENDIX A5 – NONRESIDENTIAL VOLUNTARY MEASURES
DIVISION A5.6 – VOLUNTARY TIERS

(Matrix Adoption Tables are non-regulatory, intended only as an aid to the user.

See Chapter 1 for state agency authority and building applications.)
Adopting agencyBSCBSC-CGSFMHCDDSAOSHPDBSCCDPHAGRDWRCECCASLSLC
121/ACACSS1234
Adopt entire CA chapterX
Adopt entire chapter as amended (amended sections listed below)
Adopt only those sections that are listed below
Chapter/Section

Division A5.6 VOLUNTARY TIERS

TABLE A5.601

NONRESIDENTIAL BUILDINGS: Green Building Standards Code Proposed Performance Approach

Note: This table is intended only as an aid in illustrating the nonresidential tier structure

CATEGORYENVIRONMENTAL PERFORMANCE GOALTIER 1TIER 2
AllMinimum MandatoryMeet all of the provisions of Chapter 5Meet all of the provisions of Chapter 5
Planning and DesignDesignated Parking for Fuel Efficient VehiclesApprox. 10% of total spacesApprox. 12% of total spaces
Electric Vehicle ChargingApprox. 8% of total spacesApprox. 10% of total spaces
Cool Roof to Reduce Heat Island EffectRoof Slope <2:12 SRI 75 Roof Slope >2:12 SRI 16Roof Slope <2:12 SRI 82 Roof Slope >2:12 SRI 27
1 additional Elective from Division A5.13 additional Electives from Division A5.1
Energy EfficiencyEnergy Performance2a,2bOutdoor lighting power 90% of Part 6 allowanceOutdoor lighting power 90% of Part 6 allowance
If applicable, solar water-heating system with minimum solar savings fraction of 0.15If applicable, solar water-heating system with minimum solar savings fraction of 0.15
If applicable, certain functional areas comply with residential indoor lighting requirementsIf applicable, certain functional areas comply with residential indoor lighting requirements
Energy Budget 95% or 90% of Part 6 calculated value of allowanceEnergy Budget 90% or 85% of Part 6 calculated value of allowance
Water Efficiency and ConservationIndoor Water Use12% Savings20% Savings
1 additional Elective from Division A5.33 additional Electives from Division A5.3
Material Conservation and Resource Efficiency3Construction Waste ReductionAt least 65% reductionAt least 80% reduction
Recycled ContentUtilize recycled content materials for 10% of total material costUtilize recycled content materials for 15% of total material cost
1 additional Elective from Division A5.43 additional Electives from Division A5.4
Environmental QualityLow-VOC Resilient Flooring90% of flooring meets VOC limits100% of flooring meets VOC limits1
Low-VOC Thermal InsulationComply with VOC limitsInstall no-added formaldehyde insulation and comply with VOC limits
1 additional Elective from Division A5.53 additional Electives from Division A5.5
Additional MeasuresAdded measures shall be achieved across at least 3 categories1 additional Elective3 additional Electives
Approximate Total Measures1525
  1. Exception: Allowance may be permitted in Tier 2 for up to 5-percent specialty purpose flooring.
  2. Solar water-heating system requirement for newly constructed restaurants as per A5.203.1.1.2.

    Exceptions:

    1. Buildings with a natural gas service water heater with a minimum of 95-percent thermal efficiency.
    2. Buildings where greater than 75 percent of the total roof area has annual solar access that is less than 70 percent. Solar access is the ratio of solar insolation including shade to the solar insolation without shade. Shading from obstructions located on the roof or any other part of the building shall not be included in the determination of annual solar access.
  3. Life cycle assessment compliant with Section A5.409.4 in this code may be substituted for prescriptive measures from Division A5.4.
The measures contained in this appendix are not mandatory unless adopted by local government as specified in Section 101.7. The provisions of this section outline means of achieving enhanced construction or reach levels by incorporating additional green building measures for newly constructed nonresidential buildings as well as additions. In order to meet one of the tier levels designers, builders or property owners are required to incorporate additional green building measures necessary to meet the threshold of each level.
To achieve CALGreen tier status, a project must meet all of the mandatory measures in Chapter 5 and, in addition, meet the provisions of this section.
For the purposes of mandatory energy efficiency standards in this code, the California Energy Commission will continue to adopt mandatory standards.
Comply with the energy efficiency requirements in Section A5.203.1.1.1 and Section A5.203.1.2.1.

In addition to the provisions of Sections A5.601.2.1 and A5.601.2.3 above, compliance with the following voluntary measures from Appendix A5 is required for Tier 1:

  1. From Division A5.1,

    1. Comply with the designated parking requirements for fuel efficient vehicles for a minimum of 10 percent of parking capacity per Section A5.106.5.1 and Table A5.106.5.1.1.
    2. Comply with thermal emittance, solar reflectance or SRI values for cool roofs in Section A5.106.11.2 and Table A5.106.11.2.1.1
    3. Comply with one elective measure selected from this division.
  2. From Division A5.3,

    1. Comply with the 12-percent reduction for indoor potable water use in Section A5.303.2.3.1.
    2. Comply with one elective measure selected from this division.
  3. From Division A5.4,2

    1. Comply with recycled content of 10 percent of materials based on estimated total cost, or use two products from Table A5.405.4 for at least 75% by cost in Section A5.405.4.
    2. Comply with the 65-percent reduction in construction and demolition waste in Section A5.408.3.1.
    3. Comply with one elective measure selected from this division.
  4. From Division A5.5,

    1. Comply with resilient flooring systems for 90 percent of resilient flooring in Section A5.504.4.7.
    2. Comply with thermal insulation meeting 2009 CHPS low-emitting materials list in Section A5.504.4.8.
    3. Comply with one elective measure selected from this division.
  5. Comply with one additional elective measure selected from any division.
1 Cool roof is required for compliance with Tiers 1 and 2 and may be used to meet energy standards in Part 6, exceed energy standards and to mitigate heat island effect.
2 Life cycle assessment compliant with Section A5.409.4 in this code may be substituted for prescriptive measures from Division A5.4.
For the purposes of mandatory energy efficiency standards in this code, the California Energy Commission will continue to adopt mandatory standards.
Comply with the energy efficiency requirements in Section A5.203.1.1 and Section A5.203.1.2.2.

In addition to the provisions of Sections A5.601.3.1 and A5.601.3.3 above, compliance with the following voluntary measures from Appendix A5 and additional elective measures shown in Table A5.601.3.4 is required for Tier 2:

  1. From Division A5.1,

    1. Comply with the designated parking requirements for fuel efficient vehicles for a minimum of 12 percent of parking capacity per Section A5.106.5.1 and Table A5.106.5.1.2.
    2. Comply with thermal emittance, solar reflectance or SRI values for cool roofs in Section A5.106.11.2 and Table A5.106.11.2.2.1
    3. Comply with three elective measures selected from this division.
  2. From Division A5.3,

    1. Comply with the 20-percent reduction for indoor potable water use in Section A5.303.2.3.2.
    2. Comply with three elective measures selected from this division.
  3. From Division A5.4,2

    1. Comply with recycled content of 15 percent of materials based on estimated total cost, or use two products from Table A5.405.4 for at least 75% by cost in Section A5.405.4.1.
    2. Comply with the 80-percent reduction in construction and demolition waste in Section A5.408.3.1.
    3. Comply with three elective measures selected from this division.
  4. From Division A5.5,

    1. Comply with resilient flooring systems for 100 percent of resilient flooring in Section A5.504.4.7.1.

      Exception: Allowance may be permitted in Tier 2 for up to 5-percent specialty purpose flooring.

    2. Comply with thermal insulation meeting 2009 CHPS low-emitting materials list and no added formaldehyde in Section A5.504.4.8.1.
    3. Comply with three elective measures selected from this division.
  5. Comply with three additional elective measures selected from any division.
1 Cool roof is required for compliance with Tiers 1 and 2 and may be used to meet energy standards in Part 6, exceed energy standards and to mitigate heat island effect.
2 Life cycle assessment compliant with Section A5.409.4 in this code may be substituted for prescriptive measures from Division A5.4.

Compliance with Section A5.601.2 or A5.601.3 shall be as required in Chapter 7 of this code. Compliance documentation shall be made part of the project record as required in Section 5.410.2 or 5.410.3.

SECTION A5.602

NONRESIDENTIAL OCCUPANCIES APPLICATION CHECKLISTS4

APPLICATION CHECKLIST FOR BSCMANDATORYVOLUNTARY1
CALGreen Tier 1CALGreen Tier 2
Requirements
Project meets all of the requirements of Divisions 5.1 through 5.5.
Planning and Design
Site Selection
A5.103.1 Community connectivity. Locate project on a previously developed site within a 1/2- mile radius of at least ten basic services, listed in Section A5.103.1.
A5.103.2 Brownfield or greyfield site redevelopment or infill area development. Select for development a brownfield in accordance with Section A5.103.2.1 or on a greyfield or infill site as defined in Section A5.106.3.2.
A5.103.2.1 Brownfield redevelopment. Develop a site documented as contaminated and fully remediated or on a site defined as a brownfield.
Site Preservation
A5.104.1.1 Local zoning requirement in place. Exceed the zoning’s open space requirement for vegetated open space on the site by 25 percent.
A5.104.1.2 No local zoning requirement in place. Provide vegetated open space area adjacent to the building equal to the building footprint area.
A5.104.1.3 No open space required in zoning ordinance. Provide vegetated open space equal to 20 percent of the total project site area.
Deconstruction and Reuse of Existing Structures
A5.105.1.1 Existing building structure. Maintain at least 75 percent of existing building structure (including structural floor and roof decking) and envelope (exterior skin and framing) based on surface area.
Exceptions:
1. Window assemblies and nonstructural roofing material.
2. Hazardous materials that are remediated as a part of the project.
3. A project with an addition of more than two times the square footage of the existing building.
A5.105.1.2 Existing nonstructural elements. Reuse existing interior nonstructural elements (interior walls, doors, floor coverings and ceiling systems) in at least 50 percent of the area of the completed building (including additions).
Exception: A project with an addition of more than two times the square footage of the existing building.
A5.105.1.3 Salvage. Salvage additional items in good condition such as light fixtures, plumbing fixtures and doors for reuse on this project in an onsite storage area or for salvage in dedicated collection bins. Document the weight or number of the items salvaged. See Items 1 and 2.
Site Development
5.106.1 Storm water pollution prevention. Newly constructed projects and additions which disturb less than one acre of land shall prevent the pollution of stormwater runoff from the construction activities through local ordinance in Section 5.106.1.1
oror ⌧
Best management practices (BMP) in Section 5.106.1.2.
A5.106.2 Storm water design. Design storm water runoff rate and quantity in conformance with Section A5.106.2.1 and storm water runoff quality by Section A5.106.2.2 or by local requirements, whichever are stricter.
A5.106.2.1 Storm water runoff rate and quantity. Implement a storm water management plan resulting in no net increase in rate and quantity of storm water runoff from existing to developed conditions.
Exception: If the site is already greater than 50 percent impervious, implement a storm water management plan resulting in a 25-percent decrease in rate and quantity.
A5.106.2.2 Storm water runoff quality. Use post construction treatment control best management practices (BMPs) to mitigate (infiltrate, filter or treat) storm water runoff from the 85th percentile 24-hour runoff event (for volume-based BMPs) or the runoff produced by a rain event equal to two times the 85th percentile hourly intensity (for flow-based BMPs).
A5.106.3 Low impact development (LID). Reduce peak runoff in compliance with Section 5.106.1. Employ at least two of the following methods or other best management practices to allow rainwater to soak into the ground, evaporate into the air or collect in storage receptacles for irrigation or other beneficial uses. LID strategies include, but are not limited to those listed in Section A5.106.3.
A5.106.3.1 Implementation. If applicable, coordinate LID projects with the local Regional Water Quality Control Board, which may issue a permit or otherwise require LID.
A5.106.3.2 Greyfield or infill site. Manage 40 percent of the average annual rainfall on the site’s impervious surfaces through infiltration, reuse or evaportranspiration.
5.106.4 Bicycle parking. For buildings within the authority of California Building Standards Commission as specified in Section 103, comply with Section 5.106.4.1. For buildings within the authority of the Division of the State Architect pursuant to Section 105, comply with Section 5.106.4.2.
5.106.4.1 Bicycle parking.[BSC-CG] Comply with Sections 5.106.4.1.1 and 5.106.4.1.2; or meet the applicable local ordinance, whichever is stricter.
5.106.4.1.1 Short-term bicycle parking.If the new project or addition or alteration is anticipated to generate visitor traffic, provide permanently anchored bicycle racks within 200 feet of the visitors’ entrance, readily visible to passers-by, for 5 percent of new visitor motorized vehicle parking spaces being added, with a minimum of one two-bike capacity rack.
Exception: Additions or alterations which add nine or fewer visitor vehicular parking spaces.
5.106.4.1.2 Long-term bicycle parking. For buildings with 10 or more tenant-occupants or for additions or alterations that add 10 or more tenant vehicular parking spaces, provide secure bicycle parking for 5 percent of tenant-occupied motorized vehicle parking spaces being added, with a minimum of one space. Acceptable parking facilities shall be convenient from the street and shall meet one of the following:
1. Covered, lockable enclosures with permanently anchored racks for bicycles;
2. Lockable bicycle rooms with permanently anchored racks; or
3. Lockable, permanently anchored bicycle lockers.
Note: Additional information on recommended bicycle accommodations may be obtained from Sacramento Area Bicycle Advocates.
A5.106.4.3 Changing rooms. For buildings with over 10 tenant-occupants, provide changing/shower facilities in accordance with Table A5.106.4.3 or document arrangements with nearby changing/shower facilities.
A5.106.5.1 Designated parking for clean air vehicles. Provide designated parking for any combination of low-emitting, fuel-efficient and carpool/van pool vehicles as shown in:
A5.106.5.1.1 Tier 1 10% of total spaces per Table A5.106.5.1.1.
A5.106.5.1.2 Tier 2 12% of total spaces per Table A5.106.5.1.2.
A5.106.5.1.3 Parking stall marking. Paint, in the paint used for stall striping, the following characters such that the lower edge of the last word aligns with the end of the stall striping and is visible beneath a parked vehicle:
CLEAN AIR/VANPOOL/EV
A5.106.5.1.4 Vehicle designations. Building managers may consult with local community Transit Management Associations (TMAs) for methods of designating qualifying vehicles, such as issuing parking stickers. See Notes 1 and 2
5.106.5.2 Designated parking. In new projects or additions or alterations that add 10 or more vehicular parking spaces, provide designated parking for any combination of low-emitting, fuel-efficient and carpool/ van pool vehicles as shown in Table 5.106.5.2.
5.106.5.2.1 Parking stall marking. Paint, in the paint used for stall striping, the following characters such that the lower edge of the last word aligns with the end of the stall striping and is visible beneath a parked vehicle:
CLEAN AIR/VANPOOL/EV
Note: Vehicles bearing Clean Air Vehicle stickers from expired HOV lane programs may be considered eligible for designated parking spaces.
5.106.5.3 Electric vehicle (EV) charging. [N] Construction shall comply with Section 5.106.5.3.1 or Section 5.106.5.3.2 to facilitate future installation of electric vehicle supply equipment (EVSE).
5.106.5.3.1 Single charging space requirements. [N]
5.106.5.3.2 Multiple charging spaces requirements. [N]
5.106.5.3.3 EV charging space calculation. [N] per Table 5.106.5.3.3 (approx. 6%)
5.106.5.3.4 [N] Identification.
5.106.5.3.5 [N] EV spaces count as designated parking.
A5.106.5.3.1 Tier 1. per Table A5.106.5.3.1(approx. 8%)
A5.106.5.3.2 Tier 2. per Table A5.106.5.3.2 (approx. 10%)
A5.106.5.3.3 Identification. The service panel or subpanel circuit directory shall identify the reserved overcurrent protective device space(s) for future EV charging as “EV CAPABLE.” The raceway termination location shall be permanently and visi- bly marked as “EV CAPABLE.”
A5.106.5.3.4 Future charging spaces qualify as designated parking as described in Section A5.106.5.1 Designated parking for clean air vehicles. See Notes 1,2 and 3.
A5.106.6 Parking capacity. Design parking capacity to meet but not exceed minimum local zoning requirements.
A5.106.6.1 Reduce parking capacity. With the approval of the enforcement authority, employ strategies to reduce on-site parking area by
1. Use of on street parking or compact spaces, illustrated on the site plan or
2. Implementation and documentation of programs that encourage occupants to carpool, ride share or use alternate transportation.
A5.106.7 Exterior walls. Meet requirements in the current edition of the California Energy Code and comply with either Section A5.106.7.1 or A5.106.7.2 for wall surfaces:
A5.106.7.1 Fenestration. Provide vegetative or manmade shading devices for all fenestration on east-, south- and west-facing walls.
A5.106.7.1.1 East and west walls. Shading devices shall have 30% coverage to a height of 20 feet or to the top of the exterior wall, whichever is less.
A5.106.7.1.2 South walls. Shading devices shall have 60% coverage to a height of 20 feet or to the top of the exterior wall, whichever is less.
A5.106.7.2 Opaque wall areas. Use wall surfacing with SRI 25 (aged), for 75% of opaque wall areas. See Exception and Note.
5.106.8 Light pollution reduction. [N] Outdoor lighting systems shall be designed and installed to comply with the following:
1. The minimum requirements in the California Energy Code for Lighting Zones 1-4 as defined in Chapter 10 of the California Administrative Code; and
2. Backlight, Uplight and Glare (BUG) ratings as defined in IESNA TM-15-11; and
3. Allowable BUG ratings not exceeding those shown in Table 5.106.8, oror
Comply with a local ordinance lawfully enacted pursuant to Section 101.7, whichever is more stringent.
Exceptions: [N]
1. Luminaires that qualify as exceptions in Section 140.7 of the California Energy Code
2. Emergency lighting
3. Building facade meeting the requirements in Table 140.7-B of the California Energy Code, Part 6.
4. Custom lighting features as allowed by the local enforcing agency, as permitted by Section 101.8 Alternate materials, designs and methods of construction
Note: [N] See also California Building Code, Chapter 12, Section 1205.6 for college campus lighting requirements for parking facilities and walkways.
5.106.10 Grading and paving. Construction plans shall indicate how site grading or a drainage system will manage all surface water flows to keep water from entering buildings. Examples of methods to manage surface water include those shown in Items 1-5. See exception for additions or alterations.
A5.106.11 Heat island effect. Reduce nonroof heat islands and roof heat islands as follows:
A5.106.11.1 Hardscape alternatives. Use one or a combination of strategies 1 through 2 for 50 percent of site hardscape or put 50 percent of parking underground.
1. Use light colored materials with an initial solar reflectance value of at least 30 as determined in accordance with ASTM Standards E1918 or C1549.
2. Use open-grid pavement system or pervious or permeable pavement system.
A5.106.11.2 Cool roof for reduction of heat island effect. Use roofing materials having a minimum aged solar reflectance, thermal emittance complying with Sections A5.106.11.2.2 and A5.106.11.2.3 or a minimum aged or Solar Reflectance Index (SRI)3 equal to or greater than the values shown in:
Table A5.106.11.2.2 ‒ Tier 1 or
Table A5.106.11.2.3 ‒ Tier 2
Exceptions:
1. Roof constructions that have a thermal mass over the roof membrane, including areas of vegetated (green) roofs, weighing at least 25 lb/sf.
2. Roof area covered by building integrated solar photovoltaic and building integrated solar thermal panels.
A5.106.11.2.1 Solar reflectance. Roofing materials shall have a minimum aged solar reflectance equal to or greater than the values specified in Table A5.106.11.2.2 for Tier 1 and Table A5.106.11.2.3 for Tier 2.
If Cool Roof Rating Council (CRRC) testing for aged reflectance is not available for any roofing products, the aged value shall be determined using the CRRC certified initial value using the equation ρaged = [0.2 + β [ρinitial – 0.2], where ρinitial = the initial solar reflectance and soiling resistance, β, listed by product type in Table A5.106.11.2.1.
Solar reflectance may also be certified by other supervisory entities approved by the Energy Commission pursuant to Title 24, Part 1, California Administrative Code.
A5.106.11.2.2 Thermal emittance. Roofing materials shall have a CRRC initial or aged thermal emittance as determined in accordance with ASTM E408 or C1371 equal to or greater than those specified in Table A5.106.11.2.2 for Tier 1 and Table A5.106.11.2.3 for Tier 2.
Thermal emittance may also be certified by other supervisory entities approved by the Energy Commission pursuant to Title 24, Part 1, California Administrative Code.
A5.106.11.2.3 Solar reflectance index alternative. Solar Reflectance Index (SRI) equal to or greater than the values specified in Table A5.106.11.2.2 for Tier 1 and Table A5.106.11.2.3 for Tier 2 may be used as an alternative to compliance with the aged solar reflectance values and thermal emittance.
SRI values used to comply with this section shall be calculated using the Solar Reflectance Index (SRI) Calculation Worksheet (SRI-WS) developed by the California Energy Commission or in compliance with ASTM E 1980-01 as specified in the California Energy Code, Section 118(i)3. Solar reflectance values used in the SRI-WS shall be based on the aged reflectance value of the roofing product or the equation in section A5.106.11.2.1 if the CRRC certified aged solar reflectance are not available. CertifiedThermal emittance used in the SRI-WS may be either the initial value or the aged value listed by the CRRC.Solar reflectance and thermal emittance may also be certified by other supervisory entities approved by the Commission pursuant to Title 24, Part 1, California Administrative Code.
See Note:
A5.106.11.3 Verification of compliance. If no documentation is available, an inspection shall be conducted to ensure roofing materials meet cool roof aged solar reflectance and thermal emittance or SRI values.
Energy Efficiency
Performance Requirements for Newly Constructed Buildings and Additions
5.201.1 Scope. Building meets or exceeds the requirements of the California Building Energy Efficiency Standards.322
A5.203.1 Energy efficiency. Nonresidential, high-rise residential and hotel/motel buildings that include lighting and/or mechanical systems shall comply with Sections A5.203.1.1 and either A5.203.1.2.1 or A5.203.1.2.2. Newly constructed buildings, as well as additions and alterations, are included in the scope of these sections. Buildings permitted without lighting or mechanical systems shall comply with Section A5.203.1.1 but are not required to comply with Sections A5.203.1.1.2 or A5.203.1.2.
A5.203.1.1 Tier 1 and Tier 2 prerequisites. Each of the following efficiency measures is required for all applicable components of the building project22
A5.203.1.1.1 Outdoor lighting. Newly installed outdoor lighting power is no greater than 90 percent of the Title 24, Part 6 calculated value of allowed outdoor lighting power.22
A5.203.1.1.2 Service water heating in restaurants. Newly constructed restaurants 8,000 square feet or greater and with service water heaters rated 75,000 Btu/h or greater installed a solar water-heating system with a minimum solar savings fraction of 0.15. See exceptions 1 and 2.22
A5.203.1.2 Performance standard. Comply with one of the advanced efficiency levels indicated below.2
A5.203.1.2.1 Tier 1. Buildings complying with the first level of advanced energy efficiency shall have an Energy Budget that is no greater than indicated below, depending on the type of energy systems included in the building project. If the newly con- structed building, addition or alteration does not include indoor lighting or mechanical systems, then no additional perfor- mance requirements above Title 24, Part 6 are required.
1. For building projects that include indoor lighting or mechanical systems, but not both: No greater than 95 percent of the Title 24, Part 6, Energy Budget for the Standard Design Building as calculated by compliance software certified by the Energy Commission.
2. For building projects that include indoor lighting and mechanical systems: No greater than 90 percent of the Title 24, Part 6 Energy Budget for the Standard Design Building as calculated by compliance software certified by the Energy Commission.
A5.203.1.2.2 Tier 2. Buildings complying with the second level of advanced energy efficiency shall have an Energy Budget that is no greater than indicated below, depending on the type of energy systems included in the building project. If the newly constructed building, addition or alteration does not include indoor lighting or mechanical systems, then no additional perfor- mance requirements above Title 24, Part 6 are required.2
1. For building projects that include indoor lighting or mechanical systems, but not both: No greater than 90 percent of the Title 24, Part 6, Energy Budget for the Standard Design Building as calculated by compliance software certified by the Energy Commission.
2. For building projects that include indoor lighting and mechanical systems: No greater than 85 percent of the Title 24, Part 6, Energy Budget for the Standard Design Building as calculated by compliance software certified by the Energy Commission.
Note: For Energy Budget calculations, high-rise residential and hotel/motel buildings are considered nonresidential buildings.
Renewable Energy
A5.211.1 On-site renewable energy. Use on-site renewable energy for at least 1 percent of the electrical service overcurrent protection device rating calculated in accordance with the 2016 California Electrical Code or 1KW, whichever is greater, in addition to the electrical demand required to meet 1 percent of natural gas and propane use calculated in accordance with the 2016 California Plumbing Code.
A5.211.1.1 Documentation. Calculate renewable on-site system to meet the requirements of Section A5.211.1. Factor in net-metering, if offered by local utility, on an annual basis.
A5.211.3 Green power. Participate in the local utility’s renewable energy portfolio program that provides a minimum of 50-percent electrical power from renewable sources. Maintain documentation through utility billings.
Elevators, Escalators and Other Equipment
A5.212.1 Elevators and escalators. In buildings with more than one elevator or two escalators, provide systems and controls to reduce the energy demand of elevators and escalators as follows. Document systems operation and controls in the project specifications and commissioning plan.
A5.212.1.1 Elevators. Traction elevators shall have a regenerative drive system that feeds electrical power back into the building grid when the elevator is in motion.
A5.212.1.1.1 Car lights and fan. A parked elevator shall turn off its car lights and fan automatically until the elevator is called for use.
A5.212.1.2 Escalators. An escalator shall have a variable voltage variable frequency (VVVF) motor drive system that is fully regenerative when the escalator is in motion.
A5.212.1.4 Controls. Controls that reduce energy demand shall meet requirements of CCR, Title 8, Chapter 4, Subchapter 6 and shall not interrupt emergency operations for elevators required in CCR, Title 24, Part 2, California Building Code.
Energy Efficient Steel Framing
A5.213.1 Steel framing. Design for and employ techniques to avoid thermal bridging.
Water Efficiency and Conservation
Indoor Water Use
5.303.1 Meters. Separate meters shall be installed for the uses described in Sections 5.303.1.1 and 5.303.1.2.
5.303.1.1 New buildings or additions in excess of 50,000 square feet. Separate submeters shall be installed as follows:
1. For each individual leased, rented or other tenant space within the building projected to consume more than 100 gal/day, including, but not limited to, spaces used for laundry or cleaners, restaurant or food service, medical or dental office, laboratory, or beauty salon or barber shop.
2. Where separate submeters for individual building tenants are unfeasible, for water supplied to the following subsystems:
a. Makeup water for cooling towers where flow through is greater than 500 gpm (30 L/s)
b. Makeup water for evaporative coolers greater than 6 gpm (0.04 L/s)
c. Steam and hot-water boilers with energy input more than 500,000 Btu/h (147 kW)
5.303.1.2 Excess consumption. A separate submeter or metering device shall be provided for any tenant within a new building or an addition that is projected to consume more than 1,000 gal/day (3800 L/day).
A5.303.2.3.1 Tier 1 – 12-percent savings. A schedule of plumbing fixtures and fixture fittings that will reduce the overall use of potable water within the building by 12 percent shall be provided. By either the prescriptive or performance method.
A5.303.2.3.2 Tier 2 – 20-percent savings. A schedule of plumbing fixtures and fixture fittings that will reduce the overall use of potable water within the building by 20 percent shall be provided. (Calculate savings by Water Use Worksheets)
A5.303.2.3.3 25-percent savings. A schedule of plumbing fixtures and fixture fittings that will reduce the overall use of potable water within the building by 25 percent shall be provided. (Calculate savings by Water Use Worksheets)
A5.303.2.3.4 Nonpotable water systems for indoor use. Utilizing nonpotable water systems (such as captured rainwater, treated graywater, and recycled water) intended to supply water closets, urinals, and other allowed uses, may be used in the calculations demonstrating the 12-, 20- or 25-percent reduction. The nonpotable water systems shall comply with the current edition of the California Plumbing Code.
5.303.3 Water conserving plumbing fixtures and fittings. Plumbing fixtures (water closets and urinals) and fittings (faucets and showerheads) shall comply with the following:
5.303.3.1 Water closets. The effective flush volume of all water closets shall not exceed 1.28 gallons per flush. Tank-type water closets shall be certified to the performance criteria of the U.S. EPA WaterSense Specification for Tank-Type Toilets.
Note: The effective flush volume of dual flush toilets is defined as the composite, average flush volume of two reduced flushes and one full flush.
5.303.3.2 Urinals.
5.303.3.2.1 Wall-mounted urinals. The effective flush volume of wall-mounted urinals shall not exceed 0.125 gallons per flush.
5.303.3.2.2 Floor-mounted urinals. The effective flush volume of floor-mounted urinals shall not exceed 0.5 gallons per flush.
5.303.3.3 Showerheads.
5.303.3.3.1 Single showerhead. Showerheads shall have a maximum flow rate of not more than 2.0 gallons per minute at 80 psi. Showerheads shall be certified to the performance criteria of the U.S. EPA WaterSense Specification for Showerheads.
5.303.3.3.2 Multiple showerheads serving one shower. When a shower is served by more than one showerhead, the combined flow rate of all showerheads and/or other shower outlets controlled by a single valve shall not exceed 2.0 gallons per minute at 80 psi, or the shower shall be designed to allow only one shower outlet to be in operation at a time.
Note: A hand-held shower shall be considered a showerhead.
A5.303.3 Appliances and fixture commercial application. Appliances and fixtures shall meet the following:
1. Clothes washers shall have a maximum Water Factor (WF) that will reduce the use of water by 10 percent below the California Energy Commissions’ WF standards for commercial clothes washers located in Title 20 of the California Code of Regulations.
2. Dishwashers shall meet the criteria in Section A5.303.3(2)(a) and (b).
3. Ice makers shall be air cooled.
4. Food steamers shall be connectionless or boilerless . and shall consume no more than 2 gallons of water per pan per hour, including condensate water, for batch type steamers, and no more than 5 gallons of water per pan per hour, including condensate water, for cook to order steamers.
5. The use and installation of water softeners that discharge to the community sewer system may be limited or prohibited by local agencies if certain conditions are met.
6. Combination ovens shall use a maximum of 1.5 gallons of water per hour per pan, including condensate water.
7. Commercial pre-rinse spray valves manufactured on or after January 1, 2006 shall function at equal to or less than 1.6 gpm (0.10 L/s) at 60 psi (414 kPa) and
a. Be capable of cleaning 60 plates in an average time of not more than 30 seconds per plate
b. Be equipped with an integral automatic shutoff
c. Operate at static pressure of at least 30 psi (207 kPa) when designed for a flow rate of 1.3 gpm (0.08 L/s) or less
8. Food waste pulping systems shall use no more than 2 gpm of potable water.
8.1. Note: potable water excludes on-site graywater use, such as dishwasher discharge water.
A5.303.4 Water conserving plumbing fixtures and fittings
A5.303.4.1 Nonwater supplied urinals.
Nonwater supplied urinals are installed in accordance with the California Plumbing Code.Where approved, Hybrid urinals, as defined in Chapter 2, shall be considered waterless urinals.
5.303.3.4 Faucets and fountains
5.303.3.4.1 Nonresidential lavatory faucets. Lavatory faucets shall have a maximum flow rate of not more than 0.5 gallons per minute at 60 psi.
5.303.3.4.2 Kitchen faucets. Kitchen faucets shall have a maximum flow rate of not more than 1.8 gallons per minute at 60 psi. Kitchen faucets may temporarily increase the flow above the maximum rate, but not to exceed 2.2 gallons per minute at 60 psi, and must default to a maximum flow rate of 1.8 gallons per minute at 60 psi.
5.303.3.4.3 Wash fountains. Wash fountains shall have a maximum flow rate of not more than 1.8 gallons per minute/20 [rim space (inches) at 60 psi].
5.303.3.4.4 Metering faucets. Metering faucets shall not deliver more than 0.20 gallons per cycle.
5.303.3.4.5 Metering faucets for wash fountains. Metering faucets for wash fountains shall have a maximum flow rate of not more than 0.20 gallons per cycle/20 [rim space (inches) at 60 psi].
Note: Where complying faucets are unavailable, aerators or other means may be used to achieve reduction.
5.303.4 Commercial kitchen equipment.
5.303.4.1 Food waste disposers. Disposers shall either modulate the use of water to no more than 1 gpm when the disposer is not in use (not actively grinding food waste/no-load) or shall automatically shut off after no more than 10 minutes of inactivity. Disposers shall use no more than 8 gpm of water.
Note: This code section does not affect local jurisdiction authority to prohibit or require disposer installation.
5.303.5 Areas of additions or alteration. For those occupancies within the authority of the California Building Standards Commission as specified in Section 103, the provisions of Section 5.303.3 and 5.303.4 shall apply to new fixtures in additions or areas of alterations to the building.
A5.303.5 Dual plumbing. New buildings and facilities shall be dual plumbed for potable and recycled water systems for toilet flushing when recycled water is available as determined by the enforcement authority.
5.303.6 Standards for plumbing fixtures and fittings. Plumbing fixtures and fittings shall be installed in accordance with the California Plumbing Code, and shall meet the applicable standards referenced in Table 1701.1 of the California Plumbing Code and in Chapter 6 of this code.
As applicable
Outdoor Water Use
5.304.1 Scope. The provisions of Section 5.304 Outdoor Water Use reference the mandatory Model Water Efficiency Landscape Ordinance (MWELO) contained within Chapter 2.7, Division 2, Title 23, California Code of Regulations.3
A5.304.2 Outdoor water use. For new water service not subject to the provisions of Water Code Section 535, separate meters or submeters shall be installed for indoor and outdoor water use for landscaped areas of at least 500 square feet but not more than 1,000 square feet.
5.304.2 Outdoor water use in landscape areas equal to or greater than 500 square feet.3 When water is used for outdoor irrigation for new construction projects with an aggregate landscape area equal to or greater than 500 square feet requiring a building or landscape permit, plan check or design review, one of the following shall apply:
1. A local water efficient landscape ordinance that is, based on evidence in the record, at least as effective in conserving water as the updated model ordinance adopted by the Department of Water Resources (DWR) per Government Code Section 65595 (c).
2. The California Department of Water Resources Model Water Efficient Landscape Ordinance (MWELO) commencing with Section 490 of Chapter 2.7, Division 2, Title 23, California Code of Regulations.
5.304.3 Outdoor water use in rehabilitated landscape projects equal to or greater than 2,500 square feet. Rehabilitated landscape projects with an aggregate landscape area equal to or greater than 2,500 square feet requiring a building or landscape permit, plan check, or design review shall comply with Section 5.304.2, Item 1 or 2.3
5.304.4 Outdoor water use in landscape areas of 2,500 square feet or less. Any project with an aggregate landscape area of 2,500 square feet or less may comply with the performance requirements of MWELO or conform to the prescriptive compliance measures contained in MWELO’s Appendix D. 3
5.304.5 Graywater or rainwater use in landscape areas. For projects using treated or untreated graywater or rainwater captured on site, any lot or parcel within the project that has less than 2,500 square feet of landscape and meets the lot or parcel’s landscape water requirement (Estimated Total Water Use) entirely with treated or untreated graywater or through stored rainwater captured on site is subject only to Appendix D Section (5).3
A5.304.6 Restoration of areas disturbed by construction. Restore all areas disturbed during construction by planting with local native and/or noninvasive vegetation.
A5.304.7 Previously developed sites. On previously developed or graded sites, restore or protect at least 50 percent of the site area with native and/or noninvasive vegetation.
A5.304.8 Graywater irrigation system. Install graywater collection system for onsite subsurface irrigation using graywater collected from bathtubs, showers, bathroom wash basins and laundry water. See California Plumbing Code.
Water Reuse
A5.305.1 Nonpotable water systems. Nonpotable water systems for indoor and outdoor use shall comply with the current edition of the California Plumbing Code.
A5.305.2 Irrigation systems. Irrigation systems regulated by a local water efficient landscape ordinance or by the California Department of Water Resources Model Water Efficient Landscape Ordinance (MWELO) shall use recycled water.
Material Conservation and Resource Efficiency
Efficient Framing Systems
A5.404.1 Wood framing. Employ advanced wood framing techniques or OVE, as permitted by the enforcing agency. See sections A5.404.1.1 and a5.404.1.2 for additional requirements.
Material Sources
A5.405.1 Regional materials. Select building materials or products for permanent installation on the project that have been harvested or manufactured in California or within 500 miles of the project site, meeting the criteria listed in Section A5.405.1.
A5.405.2 Bio-based materials. Select bio-based building materials per Section A5.405.2.1 or A5.405.2.2.
A5.405.2.1 Certified wood products. Certified wood is an important component of green building strategies and the California Building Standards Commission will continue to develop a standard through the next code cycle.
A5.405.2.2 Rapidly renewable materials. Use materials made from plants harvested within a ten-year cycle for at least 2.5 percent of total materials value, based on estimated cost.
A5.405.3 Reused materials. Use salvaged, refurbished, refinished or reused materials for at least 5 percent of the total value, based on estimated cost of materials on the project.
A5.405.4 Recycled content. Use materials, equivalent in performance to virgin materials, with a total (combined) recycled content value (RCV) of:
Tier 1. The RCV shall not be less than 10 percent of the total material cost of the project or use two products which meet the minimum recycled content levels in Table A5.405.4 for at least 75%, by cost, of all products in that category in the project
Tier 2. The RCV shall not be less than 15 percent of the total material cost of the project or use three products which meet the minimum recycled content levels in Table A5.405.4 for at least 75%, by cost, of all products in that category in the project.
Note: Use the equations in the subsections for calculating total materials cost, recycled content, RCV of materials and assemblies, and total RCV.
A5.405.5 Cement and concrete. Use cement and concrete made with recycled products and complying with the following sections:
A5.405.5.1 Cement. Cement shall comply with one of the following standards:
1. Portland cement shall meet ASTM C150.
2. Blended hydraulic cement shall meet ASTM C595.
3. Other Hydraulic Cements shall meet ASTM C1157.
A5.405.5.2 Concrete. Unless otherwise directed by the Engineer of Record, use concrete manufactured with cementitious materials in accordance with Sections A5.405.5.2.1 and A5.405.5.2.1.1, as approved by the enforcing agency.
A5.405.5.2.1 Supplementary cementitious materials (SCMs). Use concrete made with one or more of the SCMs listed in Section A5.405.5.2.1.
A5.405.5.2.1.1 Mix design equation. Use any combination of one or more SCMs, satisfying Equation A4.5-14.
Exception: Minimums in mix designs approved by the Engineer of Record may be lower where high early strength is needed.
A5.405.5.3 Additional means of compliance. Any of the following measures shall be permitted to be employed for the production of cement or concrete, depending on their availability and suitability, in conjunction with Section A5.405.5.2.
A5.405.5.3.1 Cement. The following measures may be used in the manufacture of cement.
A5.405.5.3.1.1 Alternative fuels. Where permitted by state or local air quality standards.
A5.405.5.3.1.2 Alternative power. Alternate electric power generated at the cement plant and/or green power purchased from the utility meeting the requirements of Section A5.211.
A5.405.5.3.2 Concrete. The following measures may be used in the manufacture of concrete,
A5.405.5.3.2.1 Alternative energy. Renewable or alternative energy meeting the requirements of Section A5.211.
A5.405.5.3.2.2 Recycled aggregates. Concrete made with one or more of the materials listed in Section A5.405.5.3.2.2.
A5.405.5.3.2.3 Mixing water. Water recycled by the local water purveyor or water reclaimed from manufacturing processes and conforming to ASTM C1602.
A5.405.5.3.2.4 High strength concrete. Concrete elements designed to reduce their total size compared to standard 3,000 psi concrete, as approved by the Engineer of Record.
Enhanced Durability and Reduced Maintenance
A5.406.1.1 Service life. Select materials for longevity and minimal deterioration under conditions of use.
A5.406.1.2 Reduced maintenance. Select materials that require little, if any, finishing.
A5.406.1.3 Recyclability. Select materials that can be re-used or recycled at the end of their service life.
Weather Resistance and Moisture Management
5.407.1 Weather protection. Provide a weather-resistant exterior wall and foundation envelope as required by California Building Code, Section 1403.2 and California Energy Code, Section 150, manufacturer’s installation instructions or local ordinance, whichever is more stringent.3
5.407.2 Moisture control. Employ moisture control measures by the following methods;
5.407.2.1 Sprinklers. Design and maintain landscape irrigation systems to prevent irrigation spray on structures.
5.407.2.2 Entries and openings. Design exterior entries and openings to prevent water intrusion into buildings as follows.
5.407.2.2.1 Exterior door protection. Primary exterior entries shall be covered to prevent water intrusion by using nonabsorbent floor and wall finishes within at least 2 feet around and perpendicular to such openings plus at least one of the following:
1. An installed awning at least 4 feet in depth.
2. The door is protected by a roof overhang at least 4 feet in depth.
3. The door is recessed at least 4 feet.
4. Other methods which provide equivalent protection.
5.407.2.2.2 Flashing. Install flashings integrated with a drainage plane.
Construction Waste Reduction, Disposal and Recycling
5.408.1 Construction waste management. Recycle and/or salvage for reuse a minimum of 65% of the nonhazardous construction waste in accordance with Section 5.408.1.1, 5.408.1.2 or 5.408.1.3; or meet a local construction and demolition waste management ordinance, whichever is more stringent.
or
5.408.1.1 Construction waste management plan. Where a local jurisdiction does not have a construction and demolition waste management ordinance that is more stringent, submit a construction waste management plan that complies with Items 1 through 4 of this section.
5.408.1.2 Waste management company. Utilize a waste management company that can provide verifiable documentation that the percentage of construction waste material diverted from the landfill complies with this section.
Exceptions to Sections 5.408.1.1 and 5.408.1.2:
1. Excavated soil and land-clearing debris
2. Alternate waste reduction methods developed by working with local agencies if diversion or recycle facilities capable of compliance with this item do not exist.
3. Demolition waste meeting local ordinance or calculated in consideration of local recycling facilities and markets
5.408.1.3 Waste stream reduction alternative. The combined weight of new construction disposal that does not exceed two pounds per square foot of building area may be deemed to meet the 50 percent minimum requirement as approved by the enforcing agency.
5.408.1.4 Documentation. Provide documentation of the waste management plan that meets the requirements listed in Sections 5.408.1.1 through 5.408.1.3, and the plan is accessible to the enforcement authority.
5.408.2 Universal Waste. [A]Additions and alterations to a building or tenant space that meet the scoping provisions in Section 301.3 for nonresidential additions and alterations, shall require verification that Universal Waste items such as fluorescent lamps and ballast and mercury containing thermostats as well as other California prohibited Universal Waste materials are disposed of properly and are diverted from landfills. A list of prohibited Universal Waste materials shall be included in the construction documents.
Note: Refer to the Universal Waste Rule link at: http://www.dtsc.ca.gov/LawsRegsPolicies/Regs/upload/OEARA_REGS_UWR_FinalText.pdf
5.408.3 Excavated soil and land clearing debris. 100 percent of trees, stumps, rocks and associated vegetation and soils resulting primarily from land clearing shall be reused or recycled.
Exception: Reuse, either on-or off-site, of vegetation or soil contaminated by disease or pest infestation.
A5.408.3.1 Enhanced construction waste reduction–Tier 1. Divert to recycle or salvage at least 65% of nonhazardous construction and demolition waste generated at the site. Any mixed recyclables that are sent to mixed-waste recycling facilities shall include a qualified third party verified facility average diversion rate. Verification of diversion rates shall meet minimum certification eligibility guidelines, acceptable to the local enforcing agency.
A5.408.3.1.1 Enhanced construction waste reduction–Tier 2. Divert to recycle or salvage at least 80% of nonhazardous construction waste generated at the site.
A5.408.3.1.2 Verification of compliance. A copy of the completed waste management report or documentation of certification of the waste management company utilized shall be provided.
Exceptions:
1. Excavated soil and land-clearing debris
2. Alternate waste reduction methods developed by working with local agencies if diversion or recycle facilities capable of compliance with this item do not exist
3. Demolition waste meeting local ordinance or calculated in consideration of local recycling facilities and markets.
Life Cycle Assessment
A5.409.1 General. Life cycle assessment shall be ISO 14044 compliant. The service life of the building and materials assemblies shall not be less than 60 years.
A5.409.2 Whole building life cycle assessment. Conduct a whole building life assessment, including operating energy, showing that the building project achieves at least a 10-percent improvement for at least three of the impacts listed in Section A5.409.2.2, one of which shall be climate change, compared to a reference building.
A5.409.3 Materials and system assemblies. If whole building analysis of the project is not elected, select a minimum of 50% of materials or assemblies based on life cycle assessment of at least three for the impacts listed in Section A5.409.2.2, one of which shall be climate change.
A5.409.4 Substitution for prescriptive standards. Performance of a life cycle assessment completed in accordance with Section A5.409.2 may be substituted for other prescriptive provisions of Division A5.4, including those made mandatory through local adoption of Tier 1 or Tier 2 in Division A5.6.
A5.409.5 Verification of compliance. Documentation of compliance shall be provided as follows:
1. The assessment is performed in accordance with ISO 14044.
2. The project meets the requirements of other parts of Title 24.
3. A copy of the analysis shall be made available to the enforcement authority.
4. A copy of the analysis and any maintenance or training recommendations shall be included in the operation and maintenance manual.
See notes for available tools.
Building Maintenance and Operation
5.410.1 Recycling by occupants. Provide readily accessible areas that serve the entire building and are identified for the depositing, storage and collection of nonhazardous materials including organic waste for recycling.3
Exception: Rural jurisdictions that meet and apply for the exemption in Public Resources Code 42649.82 (a)(2)(A) et seq. shall also be exempt from the organic waste portion of this section.
5.410.1.1 Additions. All additions conducted within a 12-month period under single or multiple permits, resulting in an increase of 30 percent or more in floor area, shall provide recyling areas on site.
Exception: Additions within a tenant space resulting in less than a 30-percent increase in the tenant space floor area.
5.410.2 Commissioning. [N] For new buildings 10,000 square feet and over, building commissioning for all building systems covered by Title 24, Part 6, process systems and renewable energy systems shall be included in the design and construction processes of the building project.
All occupancies other than I-occupancies and L-occupancies shall comply with the California Energy Code as prescribed in California Energy Code Section 120.8. For I-occupancies which are not regulated by OSHPD or for I-occupancies and L-occupancies which are not regulated by the California Energy Code Section 100.0 Scope; all requirements in sections 5.410.2 through 5.410.2.6 shall apply.
Commissioning requirements shall include items listed in Section 5.410.2.
Exceptions:
1. Unconditioned warehouses of any size
2. Areas less than 10,000 square feet used for offices or other conditioned accessory spaces within unconditioned warehouses
3. Tenant improvements less than 10,000 square feet as described in Section 303.1.1.
4. Open parking garages of any size, or open parking garage areas of any size, within a structure.
5.410.2.1 Owner’s Project Requirements (OPR). [N] Documented before the design phase of the project begins the OPR shall include items listed in Section 5.410.2.1.
5.410.2.2 Basis of Design (BOD). [N] A written explanation of how the design of the building systems meets the OPR shall be completed at the design phase of the building project to cover the systems listed in Section 5.410.2.2.
5.410.2.3 Commissioning plan. [N] A commissioning plan describing how the project will be commissioned shall include items listed in Section 5.410.2.3.
5.410.2.4 [N] Functional performance testing shall demonstrate the correct installation and operation of each component, system and system-to-system interface in accordance with the approved plans and specifications.
5.410.2.5 Documentation and training. [N] A Systems manual and systems operations training are required.
5.410.2.5.1 Systems manual. [N] The systems manual shall be delivered to the building owner or representative and facilities operator and shall include the items listed in Section 5.410.2.5.1.
5.410.2.5.2 Systems operations training. [N] A program for training of the appropriate maintenance staff for each equipment type and/or system shall be developed and shall include items listed in Section 5.410.2.5.2
5.410.2.6 Commissioning report. [N] A report of commissioning process activities undertaken through the design and construction phases of the building project shall be completed and provided to the owner or representative.
5.410.4 Testing and adjusting. Testing and adjusting of systems shall be required for buildings less than 10,000 square feet. Applies to new systems serving additions or alterations.
5.410.4.2 Systems. Develop a written plan of procedures for testing and adjusting systems. Systems to be included for testing and adjusting shall include, as applicable to the project, the systems listed in Section 5.410.4.2.
5.410.4.3 Procedures. Perform testing and adjusting procedures in accordance with applicable standards on each system as determined by the enforcing agency.
5.410.4.3.1 HVAC balancing. Before a new space-conditioning system serving a building or space is operated for normal use, balance in accordance with the procedures defined by national standards listed in Section 5.410.4.3.1 or as approved by the enforcing agency.
5.410.4.4 Reporting. After completion of testing, adjusting and balancing, provide a final report of testing signed by the individual responsible for performing these services.
5.410.4.5 Operation and maintenance manual. Provide the building owner with detailed operating and maintenance instructions and copies of guaranties/warranties for each system prior to final inspection.
5.410.4.5.1 Inspections and reports. Include a copy of all inspection verifications and reports required by the enforcing agency.
Environmental Quality
Fireplaces
5.503.1 Fireplaces. Install only a direct-vent sealed-combustion gas or sealed wood-burning fireplace or a sealed woodstove and refer to residential requirements in the California Energy Code, Title 24, Part 6, Subchapter 7, Section 150.
As applicable
5.503.1.1 Woodstoves. Woodstoves shall comply with US EPA New Source Performance Standards (NSPS) emission limits, where applicable, and shall have a permanent label indicating they are certified to meet the emission limits.
Pollutant Control
A5.504.1 Indoor air quality (IAQ) during construction. Maintain IAQ as provided in Sections A5.504.1.1 and A5.504.1.2.
A5.504.1.1 Temporary ventilation. Provide temporary ventilation during construction in accordance with Section 121 of the California Energy Code, CCR, Title 24, Part 6 and Chapter 4 of CCR, Title 8 and as listed in Items 1 and 2 in Section A5.504.1.1.
A5.504.1.2 Additional IAQ measures. Employ additional measures as listed in Items 1 through 5 in Section A5.504.1.2.
5.504.1 Temporary ventilation. If the HVAC system is used during construction, use return air filters with a MERV of 8, based on ASHRAE 52.2-1999, or an average efficiency of 30% based on ASHRAE 52.1-1992. Replace all filters immediately prior to occupancy. Applies to additions or alterations.
A5.504.2 IAQ postconstruction. Flush out the building per Section A5.504.2 prior to occupancy or if the building is occupied.
A5.504.2.1 IAQ Testing. A testing alternative may be employed after all interior finishes have been installed, using testing protocols recognized by the United State Environmental Protection Agency (U.S. EPA) and in accordance with Section A5.504.2.1.2. Retest as required in Section A5.504.2.1.3.
A5.504.2.1.1 Maximum levels of contaminants. Allowable levels of contaminant concentrations measured by testing shall not exceed the following:
1. Carbon Monoxide (CO): 9 parts per million, not to exceed outdoor levels by 2 parts per million;As applicableAs applicable
2. Formaldehyde: 27 parts per billion;
3. Particulates (PM10): 50 micrograms per cubic meter;
4. 4-Phenylcyclohexene (4-PCH): 6.5 micrograms per cubic meter; and
5. Total Volatile Organic Compounds (TVOC): 300 micrograms per cubic meter.
A5.504.2.1.2 Test protocols. Testing of indoor air quality should include the elements listed in Items 1 through 4.
A5.504.2.1.3 Noncomplying building areas. For each sampling area of the building exceeding the maximum concentrations specified in Section A5.504.2.1.1, flush out with outside air and retest samples taken from the same area. Repeat the procedures until testing demonstrates compliance.
5.504.3 Covering of duct openings and protection of mechanical equipment during construction. At the time of rough installation and during storage on the construction site and until final startup of the heating, cooling and ventilating equipment, all duct and other related air distribution component openings shall be covered with tape, plastic, sheetmetal or other methods acceptable to the enforcing agency to reduce the amount of dust, water and debris which may enter the system.
5.504.4 Finish material pollutant control. Finish materials shall comply with Sections 5.504.4.1 through 5.504.4.6.
5.504.4.1 Adhesives, sealants, caulks. Adhesives and sealants used on the project shall meet the requirements of the following standards.
1. Adhesives, adhesive bonding primers, adhesive primers, sealants, sealant primers and caulks shall comply with local or regional air pollution control or air quality management district rules where applicable or SCAQMD Rule 1168 VOC limits, as shown in Tables 5.504.4.1 and 5.504.4.2.
2. Aerosol adhesives and smaller unit sizes of adhesives and sealant or caulking compounds (in units of product, less packaging, which do not weigh more than one pound and do not consist of more than 16 fluid ounces) shall comply with statewide VOC standards and other requirements, including prohibitions on use of certain toxic compounds, of California Code of Regulations, Title 17, commencing with Section 94507.
5.504.4.3 Paints and coatings. Architectural paints and coatings shall comply with Table 5.504.4.3 unless more stringent local limits apply.
5.504.4.3.1 Aerosol paints and coatings. Aerosol paints and coatings shall meet the Product- Weighted MIR Limits for ROC in Section 94522(a)(3) and other requirements, including prohibitions on use of certain toxic compounds and ozone depleting substances (CCR, Title 17, Section 94520, et seq.).
5.504.4.3.2 Verification. Verification of compliance with this section shall be provided at the request of the enforcing agency.
5.504.4.4 Carpet systems. All carpet installed in the building interior shall meet the testing and product requirements of one of the standards listed in Section 5.504.4.4.
5.504.4.4.1 Carpet cushion. All carpet cushion installed in the building interior shall meet the requirements of the Carpet and Rug Institute’s Green Label program.
5.504.4.4.2 Carpet adhesive. All carpet adhesive shall meet the requirements of Table 5.504.4.1.
5.504.4.5 Composite wood products. Hardwood plywood, particleboard and medium density fiberboard composite wood products used on the interior or exterior of the building shall meet the requirements for formaldehyde as specified in Table 5.504.4.5.
A5.504.4.5.1 No added formaldehyde, Tier 1. Use composite wood products approved by the ARB as no-added formaldehyde (NAF) based resins or ultra-low emitting formaldehyde (ULEF) resins.
5.504.4.5.3 Documentation. Verification of compliance with this section shall be provided as requested by the enforcing agency. Documentation shall include at least one of the following:
As applicable
1. Product certifications and specifications.
2. Chain of custody certifications.
3. Product labeled and invoiced as meeting the Composite Wood Products regulation (see CCR, Title 17, Section 93120, et seq.).
4. Exterior grade products marked as meeting the PS-1 or PS-2 standards of the Engineered Wood Association, the Australian AS/NZS 2269 or European 636 3S standards.
5. Other methods acceptable to the enforcing agency.
5.504.4.6 Resilient flooring systems. For 80 percent of floor area receiving resilient flooring, install resilient flooring which meets one of the following:
1. Certified under the Resilient Floor Covering Institute (RFCI) FloorScore program;
2. Compliant with the VOC-emission limits and testing requirements specified in the California Department of Public Health’s 2010 Standard Method for the Testing and Evaluation Chambers, Version 1.1, February 2010;
3. Compliant with the Collaborative for High Performance Schools California (CA-CHPS) Criteria Interpretation for EQ 7.0 and 7.1 (formerly EQ. 2.2) dated July 2012 and listed in the CHPS High Performance Product Database; or
4. Products certified under UL GREENGUARD Gold (formerly the Greenguard Children’s & Schools Program).
A5.504.4.6.1 Verification of compliance. Documentation shall be provided verifying that resilient flooring materials meet the pollutant emission limits.
A5.504.4.7 Resilient flooring systems, Tier 1. For 90 percent of floor area receiving resilient flooring, installed resilient flooring shall meet at least one of the following:
1. Certified under the Resilient Floor Covering Institute (RFCI) FloorScore program;
2. Compliant with the VOC-emission limits and testing requirements specified in the California Department of Public Health’s 2010 Standard Method for the Testing and Evaluation Chambers, Version 1.1, February 2010;
3. Compliant with the Collaborative for High Performance Schools California (CA-CHPS) Criteria Interpretation for EQ 7.0 and 7.1 (formerly EQ. 2.2) dated July 2012 and listed in the CHPS High Performance Product Database; or
4. Products certified under UL GREENGUARD Gold (formerly the Greenguard Children’s & Schools Program).
A5.504.4.7.1 Resilient flooring systems, Tier 2. For 100 percent of floor area to scheduled to receive resilient flooring, install resilient flooring shall meet at least one of the following:
1. Certified under the Resilient Floor Covering Institute (RFCI) FloorScore program;
2. Compliant with the VOC-emission limits and testing requirements specified in the California Department of Public Health’s 2010 Standard Method for the Testing and Evaluation Chambers, Version 1.1, February 2010;
3. Compliant with the Collaborative for High Performance Schools California (CA-CHPS) Criteria Interpretation for EQ 7.0 and 7.1 (formerly EQ. 2.2) dated July 2012 and listed in the CHPS High Performance Product Database; or
4. Products certified under UL GREENGUARD Gold (formerly the Greenguard Children’s & Schools Program).
A5.504.4.7.2 Verification of compliance. Documentation shall be provided verifying that resilient flooring materials meet the pollutant emission limits.
A5.504.4.8 Thermal insulation, Tier 1. Comply with the standards listed in Items 1 through 3.
A5.504.4.8.1 Thermal insulation, Tier 2 Thermal insulation, No-added Formaldehyde. Install thermal insulation which complies with Tier 1 plus does not contain any added formaldehyde.
A5.504.4.8.2 Verification of compliance. Documentation shall be provided verifying that thermal insulation materials meet the pollutant emission limits.
A5.504.4.9 Acoustical ceilings and wall panels. Comply with Chapter 8 in Title 24, Part 2 and with the VOC- emission limits defined in the 2009 CHPS criteria and listed on its High Performance Products Database.
A5.504.4.9.1 Verification of compliance. Documentation shall be provided verifying that acoustical finish materials meet the pollutant emission limits.
Note: Products compliant with CHPS criteria certified under the Greenguard Children & Schools program may also be used.
A5.504.5 Hazardous particulates and chemical pollutants. Minimize and control pollutant entry into buildings and cross-contamination of regularly occupied areas.
A5.504.5.1 Entryway systems. Install permanent entryway systems measuring at least six feet in the primary direction of travel to capture dirt and particulates at entryways directly connected to the outdoors as listed in Items 1 through 3 in Section A5.504.5.1.
A5.504.5.2 Isolation of pollutant sources. In rooms where activities produce hazardous fumes or chemicals, exhaust them and isolate them from their adjacent rooms as listed in Items 1 through 3 in Section A5.504.5.2.
5.504.5.3 Filters. In mechanically ventilated buildings, provide regularly occupied areas of the building with air filtration media for outside and return air that provides at least a MERV of 8. MERV 8 filters shall be installed prior to occupancy, and recommendations for maintenance with filters of the same value shall be included in the operation and maintenance manual.
Exceptions:
1. An ASHRAE 10-percent to 15-percent efficiency filter shall be permitted for an HVAC unit meeting the 2013 California Energy Code having 60,000 Btu/h or less capacity per fan coil, if the energy use of the air delivery system is 0.4 W/cfm or less at design air flow.
2. Existing mechanical equipment.
5.504.5.3.1 Labeling. Installed filters shall be clearly labeled by the manufacturer indicating the MERV rating.
A5.504.5.3.1 Filters, Tier 1. In mechanically ventitlated buildings, provide regularly occupied areas of the building with air infiltration media for outside and return air prior to ocupancy that provides at least a MERV of 11.
A5.504.5.3.1.1 Filters, Tier 2. In mechanically ventilated buildings, provide regularly occupied areas of the building with air filtration media for outside and return air prior to occupancy that provides at least a Minimum Efficiency Reporting Value (MERV) of 13.
5.504.7 Environmental tobacco smoke (ETS) control. Prohibit smoking within 25 feet of building entries, outdoor air intakes and operable windows where outdoor areas are provided for smoking and within the building as already prohibited by other laws or regulations; or as enforced by ordinances, regulations or policies of any city, county, city and county, California Community College, campus of the California State University or campus of the University of California, whichever are more stringent.
Indoor Moisture and Radon Control
5.505.1 Indoor moisture control. Buildings shall meet or exceed the provisions of California Building Code, CCR, Title 24, Part 2, Sections 1203 and Chapter 14.1.3
Air Quality and Exhaust
5.506.1 Outside air delivery. For mechanically or naturally ventilated spaces in buildings, meet the minimum requirements of Section 120.1 of the California Energy Code and Chapter 4 of CCR, Title 8 or the applicable local code, whichever is more stringent.3
5.506.2 Carbon dioxide (CO2) monitoring. For buildings or additions equipped with demand control ventilation, CO2 sensors and ventilation controls shall be specified and installed in accordance with the requirements of the California Energy Code, CCR, Section 120(c)(4).3
Environmental Comfort
A5.507.1 Lighting and thermal comfort controls. Provide controls in the workplace as described in Sections A5.507.1.1 and A5.507.1.2.
A5.507.1.1 Single-occupant spaces. Provide individual controls that meet energy use requirements in the California Energy Code by Sections A5.507.1.1.1 and A5.507.1.1.2.
A5.507.1.1.1 Lighting. Provide individual task lighting and/or daylighting controls for at least 90 percent of the building occupants.
A5.507.1.1.2 Thermal comfort. Provide individual thermal comfort controls for at least 50 percent of the building occupants by Items 1 and 2 in Section A5.507.1.1.2.
A5.507.1.2 Multi-occupant spaces. Provide lighting and thermal comfort system controls for all shared multi-occupant spaces.
A5.507.2 Daylight. Provide daylit spaces as required for toplighting and sidelighting in the California Energy Code. In constructing a design, consider Items 1 through 4 in Section A5.507.3.
A5.507.3 Views. Achieve direct line of sight to the outdoor environment via vision glazing between 2’6” and 7’6” above finish floor for building occupants in 90 percent of all regularly occupied areas.
A5.507.3.1 Interior office spaces. Entire areas of interior office spaces may be included in the calculation if at least 75 percent of each area has direct line of sight to perimeter vision glazing.
A5.507.3.2 Multi-occupant spaces. Include in the calculation the square footage with direct line of sight to perimeter vision glazing.
5.507.4 Acoustical control. Employ building assemblies and components with STC values determined in accordance with ASTM E90 and ASTM E413 or OITC determined in accordance with ASTM E1332, using either the prescriptive or performance method in Section 5.507.4.1 or 5.507.4.2.
5.507.4.1 Exterior noise transmission, prescriptive method. Wall and floor-ceiling assemblies exposed to the noise source making up the building envelope shall have exterior wall and roof ceiling assemblies meeting a composite STC rating of at least 50 or a composite OITC rating of no less than 40 with exterior windows of a minimum STC of 40 or OITC of 30 in the locations described in Items 1 and 2. Also applies to addition envelope or altered envelope.
5.507.4.1.1 Noise exposure where noise contours are not readily available. Buildings exposed to a noise level of 65 dB Leq-1Hr during any hour of operation shall have exterior wall and roof-ceiling assemblies exposed to the noise source meeting a composite STC rating of at least 45 (or OITC 35), with exterior windows of a minimum STC of 40 (or OITC 30). Also applies to addition or alteration exterior wall.
or
5.507.4.2 Performance method. For buildings located as defined in Sections A5.507.4.1 or A5.507.4.1.1, wall and roof-ceiling assemblies making up the building envelope shall be constructed to provide an interior noise environment attributable to exterior sources that does not exceed an hourly equivalent noise level (Leq-1Hr) of 50 dBA in occupied areas during any hour of operation. Also applies to addition envelope or altered envelope.
5.507.4.2.1 Site features. Exterior features such as sound walls or earth berms may be utilized as appropriate to the project to mitigate sound migration to the interior. Also applies to addition envelope or altered envelope.
5.507.4.2.1 Documentation of compliance. An acoustical analysis documenting complying interior sound levels shall be prepared by personnel approved by the architect or engineer of record.
5.507.4.3 Interior sound transmission. Wall and floor-ceiling assemblies separating tenant spaces and tenant spaces and public places shall have an STC of at least 40.
Outdoor Air Quality
5.508.1 Ozone depletion and global warming reductions. Installations of HVAC, refrigeration and fire suppression equipment shall comply with Sections 5.508.1.1 and 5.508.1.2.As applicable
5.508.1.1 CFCs. Install HVAC and refrigeration equipment that does not contain CFCs.3
5.508.1.2 Halons. Install fire suppression equipment that does not contain Halons.1
A5.508.1.3 Hydrochlorofluorocarbons (HCFCs). Install HVAC and refrigeration equipment that does not contain HCFCs.
A5.508.1.4 Hydrofluorocarbons (HFCs). Install HVAC complying with either of the following:
1. Install HVAC, refrigeration and fire suppression equipment that do not contain HFCs or that do not contain HFCs with a global warming potential greater than 150.
2. Install HVAC and refrigeration equipment that limit the use of HFC refrigerant through the use of a secondary heat transfer fluid with a global warming potential no greater than 1.
5.508.2 Supermarket refrigerant leak reduction. New commercial refrigeration systems shall comply with the provisions of this section when installed in retail food stores 8,000 square feet or more conditioned area, and that utilize either refrigerated display cases, or walk-in coolers or freezers connected to remote compressor units or condensing units. The leak reduction measures apply to refrigeration systems containing high-global- warming potential (high-GWP) refrigerants with a GWP of 150 or greater. New refrigeration systems include both new facilities and the replacement of existing refrigeration systems in existing facilities.
As applicable
Exception: Refrigeration systems containing low-global warming potential (low-GWP) refrigerant with a GWP value less than 150 are not subject to this section. Low-GWP refrigerants are nonozone-depleting refrigerants that include ammonia, carbon dioxide (CO2), and potentially other refrigerants.
5.508.2.1 Refrigerant piping. Piping compliant with the California Mechanical Code shall be installed to be accessible for leak protection and repairs. Piping runs using threaded pipe, copper tubing with an outside diameter (OD) less than 1/4 inch, flared tubing connections and short radius elbows shall not be used in refrigerant systems except as noted below.
5.508.2.1.1 Threaded pipe. Threaded connections are permitted at the compressor rack.
5.508.2.1.2 Copper pipe. Copper tubing with an OD less than 1/4 inch may be used in systems with a refrigerant charge of 5 pounds or less.
5.508.2.1.2.1 Anchorage.1/4 inch OD tubing shall be securely clamped to a rigid base to keep vibration levels below 8 mils.
5.508.2.1.3 Flared tubing connections. Double-flared tubing connections may be used for pressure controls, valve pilot lines and oil.
Exception: Single-flared tubing connections may be used with a multiring seal coated with industrial sealant suitable for use with refrigerants and tightened in accordance with manufacturer’s recommendations.
5.508.2.1.4 Elbows. Short radius elbows are only permitted where space limitations prohibit use of long radius elbows.
5.508.2.2 Valves. Valves and fittings shall comply with the California Mechanical Code and as follows.
5.508.2.2.1 Pressure relief valves. For vessels containing high-GWP refrigerant, a rupture disc shall be installed between the outlet of the vessel and the inlet of the pressure relief valve.
5.508.2.2.1.1 Pressure detection. A pressure gauge, pressure transducer or other device shall be installed in the space between the rupture disc and the relief valve inlet to indicate a disc rupture or discharge of the relief valve.
5.508.2.2.2 Access valves. Only Schrader access valves with a brass or steel body are permitted for use.
5.508.2.2.2.1 Valve caps. For systems with a refrigerant charge of 5 pounds or more, valve caps shall be brass or steel and not plastic.
5.508.2.2.2.2 Seal caps. If designed for it, the cap shall have a neoprene O-ring in place.
5.508.2.2.2.2.1 Chain tethers. Chain tethers to fit over the stem are required for valves designed to have seal caps.
Exception: Valves with seal caps that are not removed from the valve during stem operation.
5.508.2.3 Refrigerated service cases. Refrigerated service cases holding food products containing vinegar and salt shall have evaporator coils of corrosion-resistant material, such as stainless steel; or be coated to prevent corrosion from these substances.
5.508.2.3.1. Coil coating. Consideration shall be given the heat transfer efficiency of coil coating to maximize energy efficiency.
5.508.2.4 Refrigerant receivers. Refrigerant receivers with capacities greater than 200 pounds shall be fitted with a device that indicates the level of refrigerant in the receiver.
5.508.2.5 Pressure testing. The system shall be pressure tested during installation prior to evacuation and charging.
5.508.2.5.1 Minimum pressure. The system shall be charged with regulated dry nitrogen and appropriate tracer gas to bring system pressure up to 300 psig minimum.
5.508.2.5.2 Leaks. Check the system for leaks, repair any leaks, and retest for pressure using the same gauge.
5.508.2.5.3 Allowable pressure change. The system shall stand, unaltered, for 24 hours with no more than a +/- one pound pressure change from 300 psig, measured with the same gauge.
5.508.2.6 Evacuation. The system shall be evacuated after pressure testing and prior to charging.
5.508.2.6.1 First vacuum. Pull a system vacuum down to at least 1000 microns (+/- 50 microns), and hold for 30 minutes.
5.508.2.6.2 Second vacuum. Pull a second system vacuum to a minimum of 500 microns and hold for 30 minutes.
5.508.2.6.3 Third vacuum. Pull a third vacuum down to a minimum of 300 microns, and hold for 24 hours with a maximum drift of 100 microns over a 24-hour period.
  1. Green building measures in this table may be mandatory if adopted by a city, county, or city and county as specified in Section 101.7.
  2. Required prerequisite for this Tier.
  3. These measures are currently required elsewhere in statute or in regulation.
  4. This application checklist is non-regulatory, intended only as an aid to the user and may not contain complete code language. Refer to Chapter 5 and Appendix Chapter A5 for complete code provisions.
Resources