2018 irc roof sheathing requirements

Fasteners for asphalt shingles shall be galvanized steel, stainless steel, aluminum or copper roofing nails, minimum 12-gage [0.105 inch (3 mm)] shank with a minimum -inch-diameter (9.5 mm) head, complying with ASTM F1667, of a length to penetrate through the roofing materials and not less than inch (19.1 mm) into the roof sheathing. Fasteners for asphalt shingles shall be galvanized steel, stainless steel, aluminum or copper roofing nails, minimum 12-gage [0.105 inch (3 mm)] shank with a minimum 3 / 8 -inch- diameter (9.5 mm) head, complying with ASTM F1667, of a length to penetrate through the roofing materials and not less than 3 / 4 inch (19.1 mm) into the roof sheathing. Rooftop-mounted photovoltaic systems shall be installed in accordance with the manufacturer's instructions. Roof valley flashing shall be not less than No. SECTION R803 ROOF SHEATHING. Thermoplastic single-ply roofs shall be installed in accordance with this chapter and the manufacturer's instructions. For SI: 1 foot = 304.8 mm; 1 mile per hour = 0.447 m/s. The installation of liquid-applied roofing shall comply with the provisions of this section. the 2018 International Residential Code (IRC) simplified wall bracing requirements. CHAPTER 8 ROOF-CEILING CONSTRUCTION. For SI: 1 ounce per square foot = 0.305 kg/m, The installation of modified bitumen roofing shall comply with the provisions of this section and the manufacturer's, Modified bitumen roofing shall have a design. conditions about your roof that may limit your product choices or affect the cost of your roofing job. Flashing and counterflashing shall be made with sheet metal. Slate shingles shall be installed in accordance with this chapter and the manufacturer's instructions. Valley linings shall be installed in accordance with the manufacturer's instructions before applying shingles. Each bundle of shakes shall be identified by a, The installation of built-up roofs shall comply with the provisions of this section and the manufacturer's. Same as Maximum Ultimate Design Wind Speed, Preservative-treated shakes and shingles of, Fire-retardant-treated shakes and shingles of, Preservative-treated tapersawn shakes of Southern pine treated in accordance with AWPA Standard U1 (Commodity Specification A, Special Requirement 4.6), Forest Products Laboratory of the Texas Forest Services, Preservative-treated tapersawn shakes of Southern Yellow Pine, Asphalt-saturated and asphalt-coated organic felt base sheet, Asphalt-saturated organic felt (perforated), Coal-tar primer used in roofing, dampproofing and waterproofing, ASTM B370 minimum 16 oz/sq ft and 12 oz/sq ft high-yield copper for metal-sheet. Mineral-surfaced roll roofing shall not be applied on roof. Slate shingles shall comply with ASTM C406. General Re-Roof Requirements . Self-adhering polymer-modified bitumen. Water soaked or deteriorating decking must be replaced. For open valleys, valley lining of two plies of mineral-surfaced roll roofing, complying with ASTM D 3909 or ASTM D 6380 Class M, shall be permitted. Valley and flashing metal shall be a minimum uncoated thickness of 0.0179-inch (0.5 mm) zinc coated G90. 12 oz/sq ft for preformed metal shingle systems. Roof valley flashing shall be not less than No. SECTION R802 WOOD ROOF FRAMING. 0 Galvanized fasteners shall be used for steel roofs. Chapter 9: Roof Assemblies, 2019 Residential Code of Ohio | UpCodes Spray-applied polyurethane foam insulation shall comply with ASTM C1029, Type III or IV or ASTM D7425. Where siding is provided on the vertical sidewall, the vertical leg of the flashing shall be continuous under the siding. The installation of wood shakes shall comply with the provisions of this section. or less. Drip edges shall extend not less than. Where the existing roof has two or more applications of any type of roof .

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