The installation of mineral-surfaced roll roofing shall comply with this section. The installation of sprayed polyurethane foam roofing shall comply with the provisions of this section. Sections of flashing shall have an end lap of not less than 4 inches (102 mm). Where exterior plaster or adhered masonry veneer is provided on the vertical sidewall, the base flashing shall be provided in accordance with this section and Section 703.6.3. Built-up roofs shall be installed in accordance with this chapter and the manufacturer's instructions. Install flashing at roof penetrations and wall intersections. Mineral-surfaced roll roofing shall be fastened to solidly sheathed roofs. Slate shingles shall comply with ASTM C406. The installation of thermoplastic single-ply roofing shall comply with the provisions of this section. 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. Asphalt shingles shall be fastened to solidly sheathed decks. Slate shingles shall be secured to the roof with two fasteners per slate. The installation of thermoplastic single-ply roofing shall comply with the provisions of this section. Paint systems in accordance with ASTM A755 shall be applied over steel products with corrosion-resistant coatings complying with ASTM A792, ASTM A875, ASTM A463, or ASTM A653. 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. The installation of slate shingles shall comply with the provisions of this section. Where the existing roof covering is wood shake, slate, clay, cement or asbestos-cement tile. Slate shingles shall be fastened to solidly sheathed roofs. Mineral-surfaced roll roofing shall be fastened to solidly sheathed roofs. The ratio changes based on climate severity. Valley flashing shall be not less than 15 inches (381 mm) wide. The installation of thermoplastic single-ply roofing shall comply with the provisions of this section. 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. For SI: 1 foot = 304.8 mm; 1 mile per hour = 0.447 m/s. Copper, brass, bronze, copper alloy and 300-series stainless steel fasteners shall be used for copper roofs. Roof valley flashing shall be not less than No. Table 1 shows an insulation ratio - the R-value on the top of the roof sheathing compared to the total R-value. Asphalt shingles shall comply with ASTM D3462. 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. The installation of built-up roofs shall comply with the provisions of this section. 26 gage [0.019 inches (0.5 mm)] corrosion-resistant sheet metal and shall extend 10 inches (254 mm) from the centerline each way for roofs having, Each bundle of shingles shall be identified by a. The installation of thermoplastic single-ply roofing shall comply with the provisions of this section. Water soaked or deteriorating decking must be replaced. For open valleys, valley lining of two plies of mineral-surfaced roll roofing, complying with ASTM D3909 or ASTM D6380 Class M, shall be permitted. Minimum headlap for slate shingles shall be in accordance with Table R905.6.5. The installation of slate shingles shall comply with the provisions of this section. Slate shingles shall comply with ASTM C406. 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. Liquid-applied roofing shall be installed in accordance with this chapter and the. Table R806.5 of the 2018 IRC lists the thermal insulation requirements for each assembly. 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. On roofs with slope equal to or greater than eight units vertical in 12 units horizontal (67-percent slope), the ice barrier shall also be applied not less than 36 inches (914 mm) measured along the roof slope from the eave edge of the building. For SI: 1 inch = 25.4 mm, 1 foot = 304.8 mm, 1 mile per hour = 0.447 m/s. Asphalt shingles shall be fastened to solidly sheathed decks. The lecture and activity format allows participants to discuss the changes, reasons for the changes, and answer knowledge review questions. Slate shingles shall comply with ASTM C 406. The installation of liquid-applied roofing shall comply with the provisions of this section. The International Residential Code (IRC) and the Residential Edition of the Florida Building Code (FBC) both refer to Table R503.2.1.1(1) of the APA Engineered Wood Construction Guide for specs. 26 gage [0.019 inches (0.5 mm)] corrosion-resistant sheet metal and shall extend 10 inches (254 mm) from the centerline each way for roofs having, Each bundle of shingles shall be identified by a. For SI: 1 inch = 25.4 mm, 1 mile per hour = 0.447 m/s. Stainless steel fasteners are acceptable for metal roofs. Same as Maximum Ultimate Design Wind Speed, Apply in accordance with the manufacturer's, Asphalt-saturated and asphalt-coated organic felt base sheet, Asphalt-saturated organic felt (perforated), Coal-tar primer used in roofing, dampproofing and waterproofing, ASTM B 370 minimum 16 oz/sq ft and 12 oz/sq ft high-yield copper for metal-sheet, ASTM B 209, 0.024 minimum thickness for roll-formed panels and 0.019-inch minimum, 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-, As an alternative, self-adhering polymer-modified bitumen, The standard calculations contained in ASTM D 7158 assume Exposure Category B or C and. Roof valley flashing shall be not less than No. The installation of sprayed polyurethane foam roofing shall comply with the provisions of this section. Thermoplastic single-ply roofs shall be installed in accordance with this chapter and the manufacturer's instructions. . 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 such insulation is covered with an. Where the existing roof has two or more applications of any type of roof . Liquid-applied roofing shall have a design. Valley linings of the following types shall be permitted: For SI: 1 inch = 25.4 mm, 1 pound = 0.454 kg. In areas where there has been a history of ice forming along the eaves causing a backup of water as designated in. endstream endobj startxref Built-up roofs shall be installed in accordance with this chapter and the manufacturer's instructions. 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. The second R-value applies when more than half of the insulation is on the interior of the mass wall. Foam plastic materials and installation shall comply with. Class A, B or C roofing shall be installed in, Flashings shall be installed in a manner that prevents moisture from entering the wall and roof through joints in copings, through moisture permeable materials and at intersections with parapet, Flashings shall be installed at wall and roof intersections, wherever there is a change in roof, A cricket or saddle shall be installed on the ridge side of any, The requirements set forth in this section shall apply to the application of, ASTM D6380 Class M mineral-surfaced roll roofing. Glenn The framing assembly incudes horizontal braces, vertical retrofit studs, and compression blocks. Asphalt shingles shall meet the classification requirements of Table R905.2.4.1 for the appropriate ultimate design wind speed. Slate shingles shall comply with ASTM C406. The 2018 IRC specifies the ratios based on climate zone. Liquid-applied roofing shall have a design. Valley linings shall be installed in accordance with the manufacturer's instructions before applying shingles. 26 gage [0.019 inch (0.5 mm)] corrosion-resistant sheet metal and shall extend not less than 11 inches (279 mm) from the centerline each way. IRC Section 301.3 Story Height: The ability is restored to construct a story of a dwelling using 12-foot high bearing walls if the wall studs are engineered for gravity loads, wall bracing amounts are increased, and a roof or celling diaphragm provides support to the studs. R905.2.1 Sheathing requirements. Paint systems in accordance with ASTM A755 shall be applied over steel products with corrosion-resistant coatings complying with ASTM A792, ASTM A875, ASTM A463, or ASTM A653. Copper, brass, bronze, copper alloy and 300-series stainless steel fasteners shall be used for copper roofs. Mineral-surfaced roll roofing shall not be applied on roof. ASTM B209, 0.024 minimum thickness for roll-formed panels and 0.019-inch minimum thickness for pressformed shingles. Liquid-applied roofing shall comply with ASTM C836, C957, D1227, D3468, D6083, D6694 or D6947. Asphalt shingle packaging shall bear a, 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, but not less than four fasteners per strip shingle or two fasteners per individual shingle. 2 RESIDENTIAL ROOFING GUIDE 2018 IRC. 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. Valley and flashing metal shall be a minimum uncoated thickness of 0.0179-inch (0.5 mm) zinc coated G90. Cap nail shank shall have a length sufficient to penetrate through the roof sheathing or not less than, The standard calculations contained in ASTM D7158 assume Exposure Category B or C and a. Materials and methods of application used for recovering or replacing an existing, The structural roof components shall be capable of supporting the, Flashings shall be reconstructed in accordance with, Chapter 9 addresses the design and construction of, The 24 inch measurement shall be along the, Building-integrated photovoltaic products. (R803.1) Spaced lumber sheathing is not allowed in Seismic Design Category D 2. Valley and flashing metal shall be a minimum uncoated thickness of 0.0179-inch (0.5 mm) zinc coated G90. Valley linings shall be installed in accordance with the manufacturer's instructions before applying shingles. Wood shakes shall comply with the requirements of Table R905.8.5. For open valleys, valley lining of two plies of mineral-surfaced roll roofing, complying with ASTM D3909 or ASTM D6380 Class M, shall be permitted. The installation of asphalt shingles shall comply with the provisions of this section. (R803.1) Hold-Downs and Hardware Asphalt shingles shall be used only on roof. 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. Liquid-applied roofing shall comply with ASTM C 836, C 957, D 1227, D 3468, D 6083, D 6694 or D 6947. Valley flashing shall be not less than 15 inches (381 mm) wide. Interlayment shall comply with ASTM D226, Type I. R905.2Asphalt shingles. Interlayment shall comply with ASTM D226, Type I. Spaced lumber decking CoL Refer to the manufacturer's technical bulletin regarding requirements for existing deck boards. Foam plastic materials and installation shall comply with Section 316. Mineral-surfaced roll roofing shall be fastened to solidly sheathed roofs. R905.2.4.1 Wind Resistance of Asphalt Shingles, R905.14 Sprayed Polyurethane Foam Roofing, Section R907 Rooftop-Mounted Photovoltaic Systems, R907.1 Rooftop-Mounted Photovoltaic Systems, Section R909 Rooftop-Mounted Photovoltaic Panel Systems, Building-integrated photovoltaic products. The installation of sprayed polyurethane foam roofing shall comply with the provisions of this section. Mineral-surfaced roll roofing shall be fastened to solidly sheathed roofs. Liquid-applied roofing shall have a design. The bottom layer shall be 18 inches (457 mm) and the top layer not less than 36 inches (914 mm) wide. arrow_right. Cap nail shank shall have a length sufficient to penetrate through the roof sheathing or not less than, The standard calculations contained in ASTM D7158 assume Exposure Category B or C and a. Asphalt shingles shall comply with ASTM D3462. arrow_right. Thermoplastic single-ply membrane roofs shall have a design. A new Footnote j R905.2 Asphalt shingles. Paint systems in accordance with ASTM A 755 shall be applied over steel products with corrosion-resistant coatings complying with ASTM A 792, ASTM A 875, ASTM A 463, or ASTM A 653. The installation of modified bitumen roofing shall comply with the provisions of this section. General Re-Roof Requirements . Above-deck thermal insulation board shall comply with the standards in Table R906.2. Mineral-surfaced roll roofing shall conform to ASTM D 3909 or ASTM D 6380, Class M. Mineral-surfaced roll roofing shall be installed in accordance with this chapter and the manufacturer's instructions. Valley linings of the following types shall be permitted: For SI: 1 inch = 25.4 mm, 1 pound = 0.454 kg. Slate shingles shall comply with ASTM C406. Slate shingles shall be installed in accordance with this chapter and the manufacturer's instructions. Self-adhering polymer-modified bitumen. The 4-inch-wide (102 mm) strips of self-adhering polymer-modified-bitumen membrane Minimum headlap for slate shingles shall be in accordance with Table R905.6.5. Foam plastic materials and installation shall comply with. 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. The installation of wood shakes shall comply with the provisions of this section. Flashing and counterflashing shall be made with sheet metal. The installation of liquid-applied roofing shall comply with the provisions of this section. Thermoset single-ply roofs shall be installed in accordance with this chapter and the manufacturer's instructions. Fifteen-inch (381 mm) or 18-inch (457 mm) wood shakes shall be permitted to be used for the final course at the. Self-adhering polymer-modified bitumen. The bottom layer shall be 18 inches (457 mm) and the top layer not less than 36 inches (914 mm) wide. Modified bitumen roofs shall be installed in accordance with this chapter and the manufacturer's instructions. For closed valleys (valley covered with shingles), valley lining of one ply of smooth roll roofing complying with ASTM D 6380 and not less than 36 inches wide (914 mm) or valley lining as described in Item 1 or 2 shall be permitted.
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