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 be fastened to solidly sheathed roofs. 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. Wood shakes shall comply with the requirements of Table R905.8.5. The bottom layer shall be 18 inches (457 mm) and the top layer not less than 36 inches (914 mm) wide. 233 0 obj <>/Filter/FlateDecode/ID[<4D23A6406EEE004484C52F82EDD55E2A>]/Index[201 60]/Info 200 0 R/Length 141/Prev 323429/Root 202 0 R/Size 261/Type/XRef/W[1 3 1]>>stream Modified bitumen roofs shall be installed in accordance with this chapter and the manufacturer's instructions. R905.2Asphalt shingles. Asphalt shingles shall be tested in accordance with ASTM D7158. Sheathing Requirements R905.2.1 Asphalt shingles shall be fastened to solidly sheathed decks. Chapter 9: Roof Assemblies, 2020 Indiana Residential Code | UpCodes 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 2018 IRC specifies the ratios based on climate zone. RESIDENTIAL ROOFING GUIDE 2018 irc - Loveland, Colorado Slate shingles shall be secured to the roof with two fasteners per slate. Slate shingles shall be secured to the roof with two fasteners per slate. 12 oz/sq ft for preformed metal shingle systems. over the entire roof and over the 4-inchwide (102 mm) membrane strips and. Thermoset single-ply roofs shall be installed in accordance with this chapter and the manufacturer's instructions. The installation of wood shingles shall comply with the provisions of this section. 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. endstream endobj startxref The installation of liquid-applied roofing shall comply with the provisions of this section. Fifteen-inch (381 mm) or 18-inch (457 mm) wood shakes shall be permitted to be used for the final course at the. Valley linings of the following types shall be permitted: For SI: 1 inch = 25.4 mm, 1 pound = 0.454 kg. Interpretation #: CEB-2018-10-2005-IRC-R905.2.1 Building or Fire Safety Law Interpreted 675 IAC 14-4.3, the 2005 Indiana Residential Code. 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. Asphalt shingles shall comply with ASTM D3462. The installation of wood shakes shall comply with the provisions of this section. Slate shingles shall comply with ASTM C 406. 2018 International Residential Code (IRC) COPYRIGHT PREFACE EFFECTIVE USE OF THE INTERNATIONAL RESIDENTIAL CODE arrow_right CHAPTER 1 SCOPE AND ADMINISTRATION arrow_right CHAPTER 2 DEFINITIONS arrow_right CHAPTER 3 BUILDING PLANNING arrow_right CHAPTER 4 FOUNDATIONS arrow_right CHAPTER 5 FLOORS arrow_right CHAPTER 6 WALL CONSTRUCTION arrow_right Valley linings of the following types shall be permitted: For SI: 1 inch = 25.4 mm, 1 pound = 0.454 kg. Foamed-in-place roof insulation shall be installed in accordance with this chapter and the manufacturer's instructions. 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. For SI: 1 inch = 25.4 mm, 1 foot = 304.8 mm, 1 mile per hour = 0.447 m/s. 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. 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. 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. Adjacent segments of drip edge shall be overlapped not less than 2 inches (51 mm). Foam plastic materials and installation shall comply with. The installation of sprayed polyurethane foam roofing shall comply with the provisions of this section. The installation of thermoset single-ply roofing shall comply with the provisions of this section. Wood shingles shall be laid with a side lap not less than 1, Roof flashing shall be not less than No. Chapter 9: Roof Assemblies, 2018 South Carolina Residential Code | UpCodes Above-deck thermal insulation board shall comply with the standards in Table R906.2. PDF 2021 Significant Code Changes for the IRC - National Association of Built-up roofs shall be installed in accordance with this chapter and the manufacturer's instructions. PDF Indiana Register FIRE PREVENTION AND BUILDING SAFETY COMMISSION CEB R803.1 is for lumber sheathing. 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. 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 Section 703.8.2.2. Unvented Conditioned Attic with Spray Foam Insulation Below Roof - PNNL 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. Asphalt shingles shall be used only on roof. 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. 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. A base sheet that complies with the requirements of Section 1507.11.2 of the. Drip edges shall extend not less than. 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. Valley and flashing metal shall be a minimum uncoated thickness of 0.0179-inch (0.5 mm) zinc coated G90. 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. DEWALT Building Code Reference: Based on the 2018 International Residential Code | Books & Magazines, Textbooks, Education & Reference, Dictionaries & Reference | eBay! The installation of mineral-surfaced roll roofing shall comply with this section. 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 base sheet that complies with the requirements of. Valley linings of the following types shall be permitted: For SI: 1 inch = 25.4 mm, 1 pound = 0.454 kg. PDF 2018 IRC UPDATE Handout 9-1-18 - ICC Slate shingles shall be fastened to solidly sheathed roofs. Spray-applied polyurethane foam insulation shall comply with ASTM C1029, Type III or IV or ASTM D7425. 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. 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 mineral-surfaced roll roofing shall comply with this section. Allowable spans for lumber used as roof sheathing shall conform to Table R803.1. Sections of flashing shall have an end lap of not less than 4 inches (102 mm). References are to the 2018 International Residential Code (sections are designated as R). 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. 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. Slate shingles shall be secured to the roof with two fasteners per slate. Install 7/16 in.-structural sheathing (OSB or plywood) on the vertical face of the gable end wall. 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. Valley flashing shall be not less than 15 inches (381 mm) wide. 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. 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. 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. The installation of wood shingles shall comply with the provisions of this section. Sprayed polyurethane foam roofs shall have a design. Flashing for asphalt shingles shall comply with this section. Asphalt shingles shall be fastened to solidly sheathed decks. The installation of modified bitumen roofing shall comply with the provisions of 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. 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. Thermoplastic single-ply membrane roofs shall have a design. Spray-applied polyurethane foam insulation shall comply with ASTM C1029, Type III or IV or ASTM D7425. For SI: 1 inch = 25.4 mm, 1 mile per hour = 0.447 m/s. 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. Interlayment shall comply with ASTM D226, Type I. %PDF-1.6 % endstream endobj 202 0 obj <. Slate shingles shall be installed in accordance with this chapter and the manufacturer's instructions. Built-up roofs shall be installed in accordance with this chapter and the manufacturer's instructions. Thermoset single-ply roofs shall be installed in accordance with this chapter and the manufacturer's instructions. The installation of thermoplastic single-ply roofing shall comply with the provisions of this section. The installation of thermoplastic single-ply roofing shall comply with the provisions of this section. 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. The installation of asphalt shingles 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. It guides the participant through an in-depth review and analysis of the bracing requirements for wood-framed residential structures. Copper, brass, bronze, copper alloy and 300-series stainless steel fasteners shall be used for copper roofs. ASTM B209, 0.024 minimum thickness for roll-formed panels and 0.019-inch minimum thickness for pressformed shingles. The installation of slate shingles shall comply with the provisions of this section. 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. Self-adhering polymer-modified bitumen. Mineral-surfaced roll roofing shall not be applied on roof. are not required for roofs sheathed with lumber having a nominal width of less than 3 feet Where siding is provided on the vertical sidewall, the vertical leg of the flashing shall be continuous under the siding. Roofing Guide to the International Residential Code (IRC) - Roof Online Where required, ice barriers shall comply with Section 905.1.2. Self-adhering polymer-modified bitumen. Roof Sheathing Ring Shank nails have been added to Table R602.3(1) Fastening Schedule with the designation RSRS-01 (2-3/8" x 0.113") as an option for roof sheathing attachment. 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. 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. 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. The installation of asphalt shingles shall comply with the provisions of this section. Liquid-applied roofing shall comply with ASTM C 836, C 957, D 1227, D 3468, D 6083, D 6694 or D 6947. 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 R901 General R901.1 Scope The provisions of this chapter shall govern the design, materials, construction and quality of roof assemblies. 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, R902.2 Fire-Retardant-Treated Shingles and Shakes, R902.3 Building-Integrated Photovoltaic Product, R902.4 Rooftop-Mounted Photovoltaic Panel Systems, R903.4.1 Secondary (Emergency Overflow) Drains or Scuppers, R904.3 Material Specifications and Physical Characteristics, Section R905 Requirements for Roof Coverings, R905.2.4.1 Wind Resistance of Asphalt Shingles, R905.14 Sprayed Polyurethane Foam Roofing, R905.17 Building-Integrated Photovoltaic (BIPV) Roof Panels Applied Directly to the Roof Deck, Section R907 Rooftop-Mounted Photovoltaic Panel Systems, R907.1 Rooftop-Mounted Photovoltaic Panel Systems, Building-integrated photovoltaic products. Asphalt shingles shall be used only on roof slopes of two units vertical in 12 units horizontal (2:12) or greater. Wood shakes shall comply with the requirements of Table R905.8.5. General Re-Roof Requirements . 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. Copper, brass, bronze, copper alloy and 300-series stainless steel fasteners shall be used for copper roofs. The installation of slate shingles shall comply with the provisions of this section. Chapter 9: Roof Assemblies, Residential Code 2018 of Nevada | UpCodes 2018 International Residential Code (Irc) | Icc Digital Codes Table R806.5 of the 2018 IRC lists the thermal insulation requirements for each assembly. 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. 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. Thermoplastic single-ply roofs shall be installed in accordance with this chapter and the manufacturer's instructions. Chapter 9: Roof Assemblies, UCC One- & Two-Family Dwelling - UpCodes The installation of asphalt shingles shall comply with the provisions of this section. Liquid-applied roofing shall comply with ASTM C836, C957, D1227, D3468, D6083, D6694 or D6947. arrow_right. The installation of mineral-surfaced roll roofing shall comply with this section. Slate shingles shall be fastened to solidly sheathed roofs. In areas where there has been a history of ice forming along the eaves causing a backup of water as designated in. Copper, brass, bronze, copper alloy and 300-series stainless steel fasteners shall be used for copper roofs. Sections of flashing shall have an end lap of not less than 4 inches (102 mm). 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. Lateral Bracing in Gable End Walls | Building America Solution Center R803.1 Lumber sheathing. Flashing and counterflashing shall be made with sheet metal. R905.2.2 Slope. 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. Please see IRC Sec- The installation of thermoset single-ply roofing shall comply with the provisions of this section. The installation of wood shakes shall comply with the provisions of this section. For SI: 1 inch = 25.4 mm, 1 foot = 304.8 mm, 1 mile per hour = 0.447 m/s. 2018 International Residential Code (Irc) | Icc Digital Codes Roof valley flashing shall be not less than No. Sections of flashing shall have an end lap of not less than 4 inches (102 mm). The installation of asphalt shingles shall comply with the provisions of this section. 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. Where siding is provided on the vertical sidewall, the vertical leg of the flashing shall be continuous under the siding. 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. 260 0 obj <>stream The GAF VersaShield Fire-Resistant Roof Deck Protection may be placed under or over the counterbattens. Section R804 Cold-Formed Steel Roof Framing Section R806 Roof Ventilation Section R807 Attic Access Chapter 9 Roof Assemblies 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. 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. 2009-2021 IECC and IRC Minimum Insulation Requirements for New Homes - PNNL For SI: 1 foot = 304.8 mm; 1 mile per hour = 0.447 m/s. 0 Roofing materials must be installed in accordance with Chapter 9 of the 2020 Minnesota Residential Code and the manufacturer's installation PDF 2018 IRC Re-Roof Guide - Town of Severance
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