Slate shingles shall be fastened to solidly sheathed roofs. For closed valleys (valley covered with shingles), valley lining of one ply of smooth roll roofing complying with ASTM D6380 and not less than 36 inches wide (914 mm) or valley lining as described in Item 1 or 2 shall be permitted. 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. Asphalt shingles shall be fastened to solidly sheathed decks. Liquid-applied roofing shall have a design. Sections of flashing shall have an end lap of not less than 4 inches (102 mm). The installation of thermoset single-ply roofing shall comply with the provisions of this section. Foam plastic materials and installation shall comply with. Minimum headlap for slate shingles shall be in accordance with Table R905.6.5. 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. In areas where there has been a history of ice forming along the eaves causing a backup of water as designated in. 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. Asphalt shingles shall meet the classification requirements of Table R905.2.4.1 for the appropriate ultimate design wind speed. The second R-value applies when more than half of the insulation is on the interior of the mass wall. 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. Water soaked or deteriorating decking must be replaced. Table 1 shows an insulation ratio - the R-value on the top of the roof sheathing compared to the total R-value. The installation of thermoset single-ply roofing shall comply with the provisions of this section. Liquid-applied roofing shall have a design. Drip edges shall extend not less than. 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. The bottom layer shall be 18 inches (457 mm) and the top layer not less than 36 inches (914 mm) wide. 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. PDF Esr-3012 - Westlake Royal Roofing Llc Asphalt shingles shall be fastened to solidly sheathed decks. PDF 2018 IRC Re-Roof Guide - Town of Severance Modified bitumen roofing shall comply with the standards in Table R905.11.2. arrow_right. In areas where there has been a history of ice forming along the eaves causing a backup of water as designated in. Foamed-in-place roof insulation shall be installed in accordance with this chapter and the manufacturer's instructions. The bottom layer shall be 18 inches (457 mm) and the top layer not less than 36 inches (914 mm) wide. Sections of flashing shall have an end lap of not less than 4 inches (102 mm). 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. Asphalt shingles shall meet the classification requirements of Table R905.2.4.1 for the appropriate ultimate design wind speed. 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. The installation of built-up roofs shall comply with the provisions of this section. Interlayment shall comply with ASTM D226, Type I. Chapter 9: Roof Assemblies, 2018 South Carolina Residential Code | UpCodes 2009-2021 IECC and IRC Minimum Insulation Requirements for New Homes - PNNL 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 905.2.8.2. 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. Fifteen-inch (381 mm) or 18-inch (457 mm) wood shakes shall be permitted to be used for the final course at the. Sections of flashing shall have an end lap of not less than 4 inches (102 mm). Stainless steel fasteners are acceptable for metal roofs. 2018 IRC Residential Building Guides for Homeowners Re-Roof - Coweta Where the existing roof has two or more applications of any type of roof covering. 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. The installation of sprayed polyurethane foam roofing shall comply with the provisions of this section. PDF Indiana Register FIRE PREVENTION AND BUILDING SAFETY COMMISSION CEB 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. endstream endobj 202 0 obj <. 2. R905.2Asphalt shingles. The installation of mineral-surfaced roll roofing shall comply with this section. 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. SECTION R801 GENERAL. 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. Asphalt shingles shall be used only on roof. Where required, an ice barrier shall comply with Section 905.1.2. Liquid-applied roofing shall be installed in accordance with this chapter and the, Where required, an ice barrier shall comply with, 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. Section R803 Roof Sheathing R803.2 Wood Structural Panel Sheathing (Roof Online Note: This subsection covers plywood and OSB sheathing. Slate shingles shall be secured to the roof with two fasteners per slate. Slate shingles shall be fastened to solidly sheathed roofs. Section R901 General R901.1 Scope The provisions of this chapter shall govern the design, materials, construction and quality of roof assemblies. 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. Built-up roofs shall be installed in accordance with this chapter and the manufacturer's instructions. Reroofing shall not be required to meet the minimum design, For roofs that provide positive drainage, recovering or replacing an existing, Complete and separate roofing systems, such as standing-seam metal roof systems, that are designed to transmit the roof loads directly to the building's structural system and do not rely on existing roofs and, Where the existing roof has two or more applications of any type of. 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. Fifteen-inch (381 mm) or 18-inch (457 mm) wood shakes shall be permitted to be used for the final course at the. 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. Galvanized fasteners shall be used for steel roofs. A new Footnote j 12 oz/sq ft for preformed metal shingle systems. Valley linings shall be installed in accordance with the manufacturer's instructions before applying shingles. Sections of flashing shall have an end lap of not less than 4 inches (102 mm). Thermoplastic single-ply membrane roofs shall have a design. Valley and flashing metal shall be a minimum uncoated thickness of 0.0179-inch (0.5 mm) zinc coated G90. For SI: 1 inch = 25.4 mm, 1 mile per hour = 0.447 m/s. 3. Slate shingles shall be fastened to solidly sheathed roofs. For SI: 1 inch = 25.4 mm, 1 foot = 304.8 mm, 1 mile per hour = 0.447 m/s. Stainless steel fasteners are acceptable for metal roofs. Stainless steel fasteners are acceptable for metal roofs. The installation of slate shingles shall comply with the provisions of this section. Asphalt shingles shall be fastened to solidly sheathed decks. Mineral-surfaced roll roofing shall be fastened to solidly sheathed roofs. Foam plastic materials and installation shall comply with. The installation of thermoset single-ply roofing shall comply with the provisions of this section. Brace gable end walls taller than 48. inches in height to resist wind forces by installing a framing assembly at each gable wall stud. Slate shingles shall be fastened to solidly sheathed roofs. Modified bitumen roofing shall comply with the standards in Table R905.11.2. Asphalt shingles shall be used only on roof. The installation of wood shakes shall comply with the provisions of this section. 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. 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. Install a nominal 4-inch-wide roof deck flashing tape over all roof sheathing panel seams and cover with #30 felt or equivalent synthetic underlayment. Self-adhering polymer modified bitumen. Chapter 9: Roof Assemblies, 2019 Residential Code of Ohio | UpCodes . Flashing and counterflashing shall be made with sheet metal. 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. Thermoset single-ply roofs shall be installed in accordance with this chapter and the manufacturer's instructions. Flashing and counterflashing shall be made with sheet metal. Where the existing roof has two or more applications of any type of roof . Asphalt shingles shall meet the classification requirements of Table 905.2.4.1 for the appropriate ultimate design wind speed. arrow_right. 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. Valley and flashing metal shall be a minimum uncoated thickness of 0.0179-inch (0.5 mm) zinc coated G90. 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. Slate shingles shall be fastened to solidly sheathed roofs. 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. 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. hb```g``:AX,;nkga3l~/ * 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. For closed valleys (valley covered with shingles), valley lining of one ply of smooth roll roofing complying with ASTM D6380 and not less than 36 inches wide (914 mm) or valley lining as described in Item 1 or 2 shall be permitted. Asphalt shingles shall be fastened to solidly sheathed decks. PDF Roof Deck Requirements for Installation of Asphalt Shingles Technical Slate shingles shall be secured to the roof with two fasteners per slate. Built-up roofs shall be installed in accordance with this chapter and the manufacturer's instructions. Section R901 General R901.1 Scope The provisions of this chapter shall govern the design, materials, construction and quality of roof assemblies. The ratio changes based on climate severity. Adjacent segments of drip edge shall be overlapped not less than 2 inches (51 mm). R905.2.1 Sheathing requirements. PDF 2021 Significant Code Changes for the IRC - National Association of The installation of wood shingles shall comply with the provisions of this section. 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. The bottom layer shall be 18 inches (457 mm) and the top layer not less than 36 inches (914 mm) wide. Glenn Valley flashing shall be not less than 15 inches (381 mm) wide. 2021 International Residential Code (Irc) | Icc Digital Codes Slate shingles shall comply with ASTM C406. Mineral-surfaced roll roofing shall be fastened to solidly sheathed roofs. 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. 3. Sprayed polyurethane foam roofs shall have a design. Roofing Guide to the International Residential Code (IRC) - Roof Online The installation of liquid-applied roofing shall comply with the provisions of this section. Chapter 9: Roof Assemblies, 2020 Indiana Residential Code | UpCodes Interlayment shall comply with ASTM D226, Type I. ASTM B209, 0.024 minimum thickness for roll-formed panels and 0.019-inch minimum thickness for pressformed shingles. 2018 International Residential Code (Irc) | Icc Digital Codes Asphalt shingles shall be fastened to solidly sheathed decks. SECTION R804 COLD-FORMED STEEL ROOF FRAMING. 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. 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. Mineral-surfaced roll roofing shall not be applied on roof. 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. If re-roofing over wood shingle, or wood shake roofs, additional code requirements may apply. Modified bitumen roofing shall comply with the standards in Table R905.11.2. Modified bitumen roofs shall be installed in accordance with this chapter and the manufacturer's instructions. The installation of mineral-surfaced roll roofing shall comply with this section. Asphalt shingles shall be fastened to solidly sheathed decks. Stainless steel fasteners are acceptable for metal roofs. 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. Lateral Bracing in Gable End Walls | Building America Solution Center Asphalt shingles shall comply with ASTM D3462. Asphalt shingles shall be tested in accordance with ASTM D7158. Table R803.1 is for roof sheathing which requires 5/8 plywood with rafters 24" o.c. Liquid-applied roofing shall be installed in accordance with this chapter and the. R803.1 is for lumber sheathing. over the entire roof and over the 4-inchwide (102 mm) membrane strips and. Self-adhering polymer-modified bitumen. Part III Building Planning and Construction, R907 Rooftop-Mounted Photovoltaic Panel Systems, Chapter 13 General Mechanical System Requirements, Chapter 14 Heating and Cooling Equipment and Appliances, Chapter 19 Special Appliances, Equipment and Systems, Chapter 22 Special Piping and Storage Systems, Chapter 37 Branch Circuit and Feeder Requirements, Chapter 39 Power and Lighting Distribution, Chapter 43 Class 2 Remote-Control, Signaling and Power-Limited Circuits, Appendix A Sizing and Capacities of Gas Piping, Appendix B Sizing of Venting Systems Serving Appliances Equipped With Draft Hoods, Category I Appliances and Appliances Listed for Use With Type B Vents, Appendix C Exit Terminals of Mechanical Draft and Direct-Vent Venting Systems, Appendix D Recommended Procedure for Safety Inspection of an Existing Appliance Installation, Appendix E Manufactured Housing Used as Dwellings, Appendix G Piping Standards for Various Applications, Appendix J Existing Buildings and Structures, Appendix T [RE] Solar-Ready ProvisionsDetached One- And Two-Family Dwellings and Townhouses, The provisions of this chapter shall govern the design, materials, construction and quality of, Roofs shall be covered with materials as set forth in Sections, 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.

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