Asphalt shingle packaging shall bear a. Materials and methods of application used for re-covering or replacing an existing, The structural roof components shall be capable of supporting the, Roof replacement shall include the removal of existing layers of, Flashings shall be reconstructed in accordance with. Rooftop-mounted photovoltaic systems shall be installed in accordance with the manufacturer's instructions. 3. The 2018 IRC specifies the ratios based on climate zone. 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. A base sheet that complies with the requirements of. The installation of wood shingles shall comply with the provisions of this section. 2018 irc roof sheathing requirements - kazuyasu.net 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. Slate shingles shall be secured to the roof with two fasteners per slate. PDF 2018 IRC Wood Wall Bracing (ABM) - ICC Thermoplastic single-ply roofs shall be installed in accordance with this chapter and the manufacturer's instructions. 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, Asphalt shingles shall have the minimum number of fasteners required by the manufacturer's, Where required, ice barriers shall comply with, Flashing for asphalt shingles shall comply with this section and the asphalt shingle manufacturer's, Base and cap flashing shall be installed in accordance with manufacturer's instructions. The installation of modified bitumen roofing shall comply with the provisions of this section. The 4-inch-wide (102 mm) strips of self-adhering polymer-modified-bitumen membrane 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. Self-adhering polymer-modified bitumen. Fifteen-inch (381 mm) or 18-inch (457 mm) wood shakes shall be permitted to be used for the final course at the. Nails shall be corrosion resistant and not less than 11-gage, Tile shall be applied in accordance with this chapter and the, At the juncture of roof vertical surfaces, flashing and counterflashing shall be provided in accordance with this chapter and the, Roof valley flashing shall be of corrosion-resistant metal of the same material as the. The installation of thermoplastic single-ply roofing shall comply with the provisions of this section. Above-deck thermal insulation board shall comply with the standards in Table R906.2. Mineral-surfaced roll roofing shall conform to ASTM D3909 or ASTM D6380, Class M. Mineral-surfaced roll roofing shall be installed in accordance with this chapter and the manufacturer's instructions. Mineral-surfaced roll roofing shall conform to ASTM D3909 or ASTM D6380, Class M. Mineral-surfaced roll roofing shall be installed in accordance with this chapter and the manufacturer's instructions. For open valleys (valley lining exposed) lined with metal, the valley lining shall be not less than 24 inches (610 mm) wide and of any of the corrosion-resistant metals in Table R905.2.8.2. In areas where the average daily temperature in January is 25F (-4C) or less, Wood shingles shall be installed in accordance with this chapter and the manufacturer's instructions. 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, Asphalt shingles shall have the minimum number of fasteners required by the manufacturer's. Where required, an ice barrier shall comply with Section 905.1.2. Chapter 9 also provides requirements for roof drainage, flashing, above-deck thermal insulation, rooftop-mounted photovoltaic systems and recovering or replacing an existing roof covering. Base flashing against a vertical sidewall shall be continuous or step flashing and shall be not less than 4 inches (102 mm) in height and 4 inches (102 mm) in width and shall direct water away from the vertical sidewall onto the roof or into the gutter. Foamed-in-place roof insulation shall be installed in accordance with this chapter and the manufacturer's instructions. Copper, brass, bronze, copper alloy and 300-series stainless steel fasteners shall be used for copper roofs. The installation of thermoplastic single-ply roofing shall comply with the provisions of this section. 2018, 2021 IECC: Mass walls shall be in accordance with Section R402.2.5 (N1102.2.5 in 2018 IRC). Slate shingles shall be fastened to solidly sheathed roofs. PDF 2021 Significant Code Changes for the IRC - National Association of PDF 2018 International Residential Code Changes Related to Wood Construction Spray-applied polyurethane foam insulation shall comply with ASTM C1029, Type III or IV or ASTM D7425. Asphalt shingles shall meet the classification requirements of Table R905.2.4.1 for the appropriate ultimate design wind speed. In areas where there has been a history of ice forming along the eaves causing a backup of water as designated in. Base flashing against a vertical sidewall shall be continuous or step flashing and shall be not less than 4 inches (102 mm) in height and 4 inches (102 mm) in width and shall direct water away from the vertical sidewall onto the roof or into the gutter. Allowable spans for lumber sheathing shall conform to IRC Table R803.1. Slate shingles shall comply with ASTM C406. For SI: 1 ounce per square foot = 0.305 kg/m. 2021 International Residential Code (Irc) | Icc Digital Codes The installation of slate shingles shall comply with the provisions of this section. Slate shingles shall comply with ASTM C406. Liquid-applied roofing shall have a design. satisfy the requirements of 2021 IBC Section 1512, 2018 and 2015 IBC Section 1511, 2012, 2009 and 2006 IBC Section 1510, 2018 and 2021, 2018 and 2015 IRC Section R908 or 2012, 2009 or 2006 IRC Section R907. PDF Esr-3012 - Westlake Royal Roofing Llc Plywood is a wood structural panel covered in R803.2.2 which points you to R503.2.1.1 There is a lot of cross over between chapters 5, 6, and 8, so don't just go with the chapter titles of floor, wall, roof. 2018 International Residential Code (Irc) | Icc Digital Codes R905.2Asphalt shingles. Wood shakes shall be installed in accordance with this chapter and the, The starter course at the eaves shall be doubled and the bottom layer shall be either 15-inch (381 mm), 18-inch (457 mm) or 24-inch (610 mm) wood shakes or wood shingles. Slate shingles shall be installed in accordance with this chapter and the manufacturer's instructions. Slate shingles shall comply with ASTM C406. The lecture and activity format allows participants to discuss the changes, reasons for the changes, and answer knowledge review questions. Install flashing at roof penetrations and wall intersections. In areas where the average daily temperature in January is 25F (-4C) or less, Wood shingles shall be installed in accordance with this chapter and the manufacturer's instructions. CONTINUE WITH CODE REQ'S Copper, brass, bronze, copper alloy and 300-series stainless steel fasteners shall be used for copper roofs. Minimum headlap for slate shingles shall be in accordance with Table R905.6.5. Base flashing shall be of either corrosion-resistant metal of minimum nominal 0.019-inch (0.5 mm) thickness or mineral-surfaced roll roofing weighing not less than 77 pounds per 100 square feet (4 kg/m. A liquid-applied protective coating that complies with Table R905.14.3 shall be applied not less than 2 hours nor more than 72 hours following the application of the foam. References are to the 2018 International Residential Code (sections are designated as R). Base flashing against a vertical sidewall shall be continuous or step flashing and shall be not less than 4 inches (102 mm) in height and 4 inches (102 mm) in width and shall direct water away from the vertical sidewall onto the roof or into the gutter. 2018 International Residential Code (Irc) | Icc Digital Codes 12 oz/sq ft for preformed metal shingle systems. The bottom layer shall be 18 inches (457 mm) and the top layer not less than 36 inches (914 mm) wide. Built-up roofs shall be installed in accordance with this chapter and the manufacturer's instructions. Wood shingles shall be laid with a side lap not less than 1, NAIL REQUIREMENTS FOR WOOD SHAKES AND WOOD SHINGLES, Roof flashing shall be not less than No. The installation of liquid-applied roofing shall comply with the provisions of this section. Slate shingles shall comply with ASTM C406. The installation of sprayed polyurethane foam roofing shall comply with the provisions of this section. In areas where there has been a history of ice forming along the eaves causing a backup of water, as designated in, The use of above-deck thermal insulation shall be permitted provided that such insulation is covered with an. Asphalt shingles shall comply with ASTM D3462. Thermoplastic single-ply roofs shall be installed in accordance with this chapter and the manufacturer's instructions. Liquid-applied roofing shall comply with ASTM C 836, C 957, D 1227, D 3468, D 6083, D 6694 or D 6947. Where anchored masonry veneer is provided on the vertical sidewall, the base flashing shall be provided in accordance with this section and counterflashing shall be provided in accordance with, Flashing against a vertical front wall, as well as soil, A drip edge shall be provided at eaves and rake edges of shingle roofs. Where siding is provided on the vertical sidewall, the vertical leg of the flashing shall be continuous under the siding. Thermoset single-ply membrane roofs shall have a design. Valley linings shall be installed in accordance with the manufacturer's instructions before applying shingles. Where the existing roof or roof covering is water-soaked or has deteriorated to the point that the existing roof or roof covering is not adequate as a base for additional roofing. The installation of mineral-surfaced roll roofing shall comply with this section. 2. Terne coating of 40 lb per double base box, field painted where applicable in accordance with, 0.027 inch minimum thickness: 99.995% electrolytic high-, ASTM D6162; D6163; D6164; D6222; D6223; D6298, As an alternative, self-adhering polymer-modified bitumen, As an alternative, a minimum 4-inch-wide (102 mm) strip of self-adhering polymer-modified bitumen membrane complying with ASTM D1970, installed in accordance with the, The cap nail shank shall be not less than 0.083 inch (2.11 mm) for ring shank cap nails and 0.091 inch (2.31 mm) for smooth shank cap nails.
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