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301.1 General

AMENDMENT
This section has been amended at the state or city level.
Climate zones from Figure 301.1 or Table 301.1 shall be used in determining the applicable requirements from Chapters 4 and 5.










TABLE 301.1
CLIMATE ZONES, MOISTURE REGIMES,
AND WARM-HUMID DESIGNATIONS BY COUNTY
OREGON
Climate Zone 4C Climate Zone 5B
Benton Baker
Clackamas Crook
Clatsop Deschutes
Columbia Gilliam
Coos Grant
Curry Harney
Douglas Hood River
Jackson Jefferson
Josephine Klamath
Lane Lake
Lincoln Malheur
Linn Morrow
Marion Sherman
Multnomah Umatilla
Polk
Union
Tillamook Wallowa
Washington Wasco
Yamhill Wheeler
Key: B - Dry, C - Marine.

301.2 Warm Humid Counties

AMENDMENT
This section has been amended at the state or city level.

301.3 International Climate Zones

AMENDMENT
This section has been amended at the state or city level.
The interior design temperatures used for heating and cooling load calculations shall be a maximum of 72°F (22°C) for heating and minimum of 75°F (24°C) for cooling.
Materials, systems and equipment shall be identified in a manner that will allow a determination of compliance with the applicable provisions of this code.
An R-value identification mark shall be applied by the manufacturer to each piece of building thermal envelope insulation 12 inches (305 mm) or greater in width. Alternately, the insulation installers shall provide a certification listing the type, manufacturer and R-value of insulation installed in each element of the building thermal envelope. For blown or sprayed insulation (fiberglass and cellulose), the initial installed thickness, settled thickness, settled R-value, installed density, coverage area and number of bags installed shall be listed on the certification. For sprayed polyurethane foam (SPF) insulation, the installed thickness of the areas covered and R-value of installed thickness shall be listed on the certification. The insulation installer shall sign, date and post the certification in a conspicuous location on the job site.
The thickness of blown-in or sprayed roof/ceiling insulation (fiberglass or cellulose) shall be written in inches (mm) on markers that are installed at least one for every 300 square feet (28 m2) throughout the attic space. The markers shall be affixed to the trusses or joists and marked with the minimum initial installed thickness with numbers a minimum of 1 inch (25 mm) in height. Each marker shall face the attic access opening. Spray polyurethane foam thickness and installed R-value shall be listed on certification provided by the insulation installer.
Insulating materials shall be installed such that the manufacturer's R-value mark is readily observable upon inspection.

303.1.3 Fenestration Product Rating

AMENDMENT
This section has been amended at the state or city level.

U-factors of fenestration products (windows, doors and skylights) shall be determined in accordance with NFRC 100 by an accredited, independent laboratory, and labeled and certified by the manufacturer or be determined using the commercial size category values listed in Chapter 15 of the 2009 ASHRAE Handbook of Fundamentals, Table No.4 and shall include the effects of the window frame. The solar heat gain coefficient (SHGC) of glazed fenestration products (windows, glazed doors and skylights) shall be determined in accordance with NFRC 200 by an accredited, independent laboratory, and labeled and certified by the manufacturer or be determined using the Solar Heat Gain Coefficients (SHGC) in Chapter 15 of the 2009 ASHRAE Handbook of Fundamentals, Table No.10. The overall values shall consider type of frame material and operator for the SHGC at normal incidence.

303.1.3.1 Certification and Labeling

AMENDMENT
This section has been amended at the state or city level.
Windows shall be certified and labeled in accordance with Section 303.1.3. Windows shall have a temporary label not to be removed prior to inspection.

Exception: Site-built windows shall have a single certificate specifying glazing type, special coatings, spacers, gas fills, center-of-glass and overall U-factor, and center-of-glass SHGC for every type of site built glass used. These certificates shall be maintained on the job site and made available to the inspector.
The thermal resistance (R-value) of insulation shall be determined in accordance with the U.S. Federal Trade Commission R-value rule (CFR Title 16, Part 460, May 31, 2005) in units of h × ft2 × °F/Btu at a mean temperature of 75°F (24°C).

303.2 Installation

AMENDMENT
This section has been amended at the state or city level.
All materials, systems and equipment shall be installed in accordance with the manufacturer's installation instructions and the Building Code.
Insulation applied to the exterior of basement walls, crawlspace walls and the perimeter of slab-on-grade floors shall have a rigid, opaque and weather-resistant protective covering to prevent the degradation of the insulation's thermal performance. The protective covering shall cover the exposed exterior insulation and extend a minimum of 6 inches (153 mm) below grade.
Maintenance instructions shall be furnished for equipment and systems that require preventive maintenance. Required regular maintenance actions shall be clearly stated and incorporated on a readily accessible label. The label shall include the title or publication number for the operation and maintenance manual for that particular model and type of product.
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