The provisions of this chapter shall govern matters related to building material conservation, resource efficiency and environmental performance.
Materials stored and handled onsite during construction phases shall comply with the applicable manufacturer’s printed instructions. Where manufacturer’s printed instructions are not available, approved standards or guidelines shall be followed.
Porous or fibrous materials and other materials subject to moisture damage shall be protected from moisture during the construction phase. Material damaged by moisture or that are visibly colonized by fungi either prior to delivery or during the construction phase shall be cleaned and dried or, where damage cannot be corrected by such means, shall be removed and replaced.
Not less than 50 percent of nonhazardous construction waste shall be diverted from disposal , except where other percentages are indicated in Table 302.1. A Construction Material and Waste Management Plan shall be developed and implemented to recycle by recycling or salvage of construction materials and waste.
The Construction Material and Waste Management Plan shall comply with all of the following:
The Construction Material and Waste Management Plan shall comply with all of the following:
1. The location for collection, separation and storage of recyclable construction waste shall be indicated.
2. Materials to be diverted from disposal by efficient usage, recycling, reuse, manufacturer’s reclamation, or salvage for future use, donation or sale shall be specified.
3. The percentage of materials to be diverted shall be specified and shall be calculated by weight or volume, but not both.
4. Receipts or other documentation related to diversion shall be maintained through the course of construction. Where requested by the code official, evidence of diversion shall be provided.For the purposes of this section, construction materials and waste shall include all materials delivered to the site and intended for installation prior to the issuance of the certificate of occupancy, including related packaging. Construction and waste materials shall not include land-clearing debris, excavated soils and fill and base materials such as, but not limited to, topsoil, sand and gravel. The owner, contractor or approved agency shall maintain receipts and other documentation through the course of construction relating to diversion. The percentage of materials diverted shall be calculated by weight or volume, but not both. For the purposes of this section, construction materials and waste shall include but are not limited to (1) all materials delivered to the site and intended for installation prior to the issuance of the certificate of occupancy, including related packaging; and (2) construction materials and waste removed during demolition or razing. Construction and waste materials shall not include land-clearing debris. Land-clearing debris shall include trees, stumps, rocks, and vegetation. Excavated soil, fill material and land-clearing debris and shall be managed in accordance with Section 406.1.
Prior to issuance of the first certificate of certificate of occupancy for occupiable space in a story above grade plane, or prior to final inspection, if a new certificate of occupancy is not required, the Department is authorized to require the owner, contractor or an approved agency to provide verification of the project’s compliance with Section 503.1. When requested by the code official, evidence of diversion shall be provided, which may include, but is not limited to, hauling receipts.
Waste recycling areas for use by building occupants shall be provided in accordance with one of the following:
1. Waste recycling areas shall be designed and constructed in accordance with the jurisdiction’s laws or regulations;
2. Where laws or regulations do not exist or where limited recycling services are available, waste recycling areas shall be designed and constructed to accommodate recyclable materials based on the availability of recycling services; or
3. Where recycling services are not available, waste recycling areas shall be designed and constructed to accommodate the future recycling of materials in accordance with an approved design. The approved design shall meet one of the following:
3.1. The approved waste recycling area design shall be based on analysis of other regional recycling services, laws or regulations.
3.2. The approved waste recycling area shall be designed to meet the needs of the occupancy, facilitate efficient pick-up, and shall be available to occupants and haulers.
Storage space shall be provided for fluorescent lamps, high-intensity discharge (HID) lamps, batteries, electronics, and other discarded items requiring special disposal by the jurisdiction.
Building materials shall conform to Section 505.2. Furniture and furnishings may be included, but are not required. Section 505 shall not apply to projects of less than 50,000 square feet (15240 m2).
1. Electrical, mechanical, plumbing, security and fire detection, and alarm equipment and controls, automatic fire sprinkler systems, elevators and conveying systems shall not be required to comply with Section 505.2.
2. Where a whole building life cycle assessment is performed in accordance with Section 303.1505.1.1, compliance with Section 505.2 shall not be required.
Where a whole building life cycle assessment is performed, compliance with the material selection requirements of Section 505 is not required. The requirements for the execution of a whole building life cycle assessment shall be performed in accordance with the following:
- The assessment shall demonstrate that the building
project achieves not less than a 20 percent improvement
in environmental performance for global
warming potential and at least two of the following
impact measures, as compared to a reference design
of similar usable floor area, function and configuration
that meets the minimum energy requirements of
this code and the structural requirements of the
Building Code. For relocatable buildings, the reference
design shall be comprised of the number of reference
buildings equal to the estimated number of
uses of the relocatable building.
- Primary energy use.
- Acidification potential.
- Eutrophication potential.
- Ozone depletion potential.
- Smog potential.
- The reference and project buildings shall utilize the same life cycle assessment tool.
- The life cycle assessment tool shall be approved by the code official.
- Building operational energy shall be included. For relocatable buildings, an average building operational energy shall be estimated to reflect potential changes in location, siting, and configuration by adding or subtracting modules, or function.
- Building process loads shall be permitted to be included.
- Maintenance and replacement schedules and actions for components shall be included in the assessment. For relocatable buildings, average transportation energy, material and waste generation associated with reuse of relocatable buildings shall be included in the assessment.
- The full life cycle shall be assessed from resource
extraction to demolition and disposal, including, but
not limited to, onsite construction, maintenance and
replacement; relocation and reconfiguration; material
and product embodied acquisition; and process
and transportation energy.
Exception: Electrical and mechanical equipment and controls, plumbing products, fire detection and alarm systems, elevators and conveying systems shall not be included in the assessment.
- The complete building envelope, structural elements, inclusive of footings and foundations, and interior walls, floors and ceilings, including interior and exterior finishes, shall be assessed to the extent that data are available for the materials being analyzed in the selected life cycle assessment tool.
- The life cycle assessment shall conform to the requirements of ISO 14044.
Not less than 5540 percent of the total building materials used in the project, based on mass, volume or cost, shall comply with Sections 505.2.1, 505.2.2, 505.2.3, 505.2.4, or 505.2.5. Where a material complies with more than one section, the material value shall be multiplied by the number of sections that it complies with. The value of total building material mass, volume or cost shall remain constant regardless of whether materials are tabulated in more than one section.
Used materials and components shall comply with the provisions for such materials in accordance with the applicable code referenced in Section 102.4 and the applicable requirements of this code. The value of used materials shall be either the actual cost paid or the replacement value.
Recycled content building materials shall comply with one of the following:
1. Contain not less than 25 percent combined post-consumer and preconsumer recovered material, and shall comply with Section 505.2.3.
2. Contain not less than 50 percent combined post-consumer and preconsumer recovered material.
- The recycled content value of a material assembly shall be determined by weight. The recycled fraction of the assembly is then multiplied by the cost of assembly to determine the recycled content value.
- Recycled content shall mean material that has been reprocessed from recovered [reclaimed] material by means of a manufacturing process and made into a final product or into a component for incorporation into a final product.
Building materials and building components that can be recycled into the same material or another material with a minimum recovery rate of not less than 30 percent through recycling and reprocessing or reuse, or building materials shall be recyclable through an established, nationally available closed loop manufacturer’s take-back program.
Bio-based materials shall be those materials that comply with one or more of the following:
1. The bio-based content is not less than 75 percent as determined by testing in accordance with ASTM D 6866.
2. Wood and wood products used to comply with this section, other than salvaged or reused wood products, shall be labeled in accordance with the SFI Standard, FSC STD-40-004 V2-1 EN, PEFC Council Technical Document or equivalent fiber procurement system. As an alternative to an on-product label, a Certificate of Compliance indicating compliance with the fiber procurement system shall be permitted. Manufacturer’s fiber procurement systems shall be audited by an accredited third-party.
3. The requirements of USDA 7CFR, Part 2902.
Indigenous materials or components shall be composed of resources that are recovered, harvested, extracted andor manufactured within a 500 mile (800 km) radius of the building site. Where only a portion of a material or product is recovered, harvested, extracted andor manufactured within 500 miles (800 km), only that portion shall be included. Where resources are transported by water or rail, the distance to the building site shall be determined by multiplying the distance that the resources are transported by water or rail by 0.25, and adding that number to the distance transported by means other than water or rail.
Within 180 days after the final inspection, the owner, contractor, or an approved agency shall provide the code official with documentation verifying compliance with the material selection or whole building life cycle assessment requirements of Section 505.
The mercury content in lamps shall comply with Section 506.2 or 506.3.
Exception: Appliance, black light, bug, colored, germicidal, plant, shatter-resistant/shatterproof/shatterprotected, showcase, UV, T-8 and T-12 lamps with a color rendering index of 87 or higher, lamps with RDC bases, and lamps used for special-needs lighting for individuals with exceptional needs.
Straight, double-ended fluorescent lamps less than 6 feet (1829 mm) in nominal length and with bi-pin bases shall contain not more than 5 milligrams of mercury per lamp.
Exception: Lamps with a rated lifetime greater than 22,000 hours at 3 hours per start operated on an ANSI reference ballast shall not exceed 8 milligrams of mercury per lamp.
Single-ended pin-base and screw-base compact fluorescent lamps shall contain not more than 5 milligrams of mercury per lamp, and shall be listed and labeled in accordance with UL 1993.
Exception: Lamps rated at 25 watts or greater shall contain not more than 6 milligrams of mercury per lamp.
Moisture preventative measures shall be inspected in accordance with Sections 902 and 903 for the categories listed in Items 1 through 7. Inspections shall be executed in a method and at a frequency as listed in Table 903.1 109 of 12 DCMR A and applicable Administrative Bulletins for the categories listed in Items 1 through 7.
1. Foundation sub-soil drainage system.
2. Foundation waterproofing.
3. Foundation dampproofing.
4. Under slab water vapor protection.
5. Flashings: Windows, exterior doors, skylights, wall flashing and drainage systems.
6. Exterior wall coverings.
7. Roof coverings, roof drainage, and flashings.