2018 irc roof sheathing requirements

Where siding is provided on the vertical sidewall, the vertical leg of the flashing shall be continuous under the siding. 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. 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. Slate shingles shall be installed in accordance with this chapter and the manufacturer's instructions. Minimum headlap for slate shingles shall be in accordance with Table R905.6.5. 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. Copper, brass, bronze, copper alloy and 300-series stainless steel fasteners shall be used for copper roofs. Asphalt shingles shall be tested in accordance with ASTM D7158. A minimum 4-inch-wide (102 mm) strip of selfadhering polymer-modified bitumen membrane complying with ASTM D 1970, installed in accordance with the manufacturer's instructions for the deck material, shall be applied over all joints in the roof decking. the 2018 International Residential Code (IRC) simplified wall bracing requirements. 12 oz/sq ft for preformed metal shingle systems. 2. 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. 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. Wood shakes shall comply with the requirements of Table R905.8.5. 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 manufacturer's instructions. The installation of sprayed polyurethane foam roofing shall comply with the provisions of this section. 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. Sections of flashing shall have an end lap of not less than 4 inches (102 mm). Asphalt shingles shall meet the classification requirements of Table R905.2.4.1 for the appropriate ultimate design wind speed. 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. 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. Section R804 Cold-Formed Steel Roof Framing Section R806 Roof Ventilation Section R807 Attic Access Chapter 9 Roof Assemblies 2018 IRC Simplified Wall Bracing Provisions 4 Objectives Upon completion, participants will be better able to: 1. For roofs that provide positive drainage, re-covering 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, The application of a new protective coating over an existing spray polyurethane foam roofing system shall be permitted without tear-off of existing, Where the existing roof has two or more applications of any type of. 2015 IRC portion of the 2018 CT State Building Code, Part III Building Planning and Construction, R907 Rooftop-Mounted Photovoltaic Systems, R909 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 Recommended Procedure for Worst-Case Testing of Atmospheric Venting Systems Under N1102.4 or N1105 Conditions 5ACH, Appendix U Solar-Ready ProvisionsDetached One- And Two-Family Dwellings, Multiple Single-Family Dwellings (Townhouses), Appendix V Wind Speeds, Seismic Design Categories and Ground Snow Loads, 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, For SI: 1 inch = 25.4 mm, 1 foot = 304.8 mm, In areas where there has been a history of ice forming along the eaves causing a backup of water as designated in. Stainless steel fasteners are acceptable for metal roofs. Asphalt shingles shall comply with ASTM D3462. 0 Roof valley flashing shall be not less than No. Thermoset single-ply roofs shall be installed in accordance with this chapter and the manufacturer's instructions. 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. Modified bitumen roofs shall be installed in accordance with this chapter and the manufacturer's instructions. 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. 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. Please see IRC Sec- 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. 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. Sprayed polyurethane foam roofs shall have a design. 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. Valley linings of the following types shall be permitted: For SI: 1 inch = 25.4 mm, 1 pound = 0.454 kg. 2. Slate shingles shall comply with ASTM C406. Modified bitumen membrane roofs shall have a design. Minimum headlap for slate shingles shall be in accordance with Table R905.6.5. Asphalt shingles shall be fastened to solidly sheathed decks. 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. hb```g``:AX,;nkga3l~/ * Asphalt shingles shall be fastened to solidly sheathed decks. The GAF VersaShield Fire-Resistant Roof Deck Protection may be placed under or over the counterbattens. Install drip edges at eaves and rakes. The installation of asphalt shingles 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. 3. over the entire roof and over the 4-inchwide (102 mm) membrane strips and. The installation of liquid-applied roofing shall comply with the provisions of this section. The installation of modified bitumen 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). Roof valley flashing shall be not less than No. Slate shingles shall be installed in accordance with this chapter and the manufacturer's instructions. 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. or less, 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. The installation of asphalt shingles 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. CONTINUE WITH CODE REQ'S 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. The installation of mineral-surfaced roll roofing shall comply with this section. 12 oz/sq ft for preformed metal shingle systems. The ratio changes based on climate severity. Allowable spans for lumber used as roof sheathing shall conform to Table R803.1. Thermoplastic single-ply roofs 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. ASTM B209, 0.024 minimum thickness for roll-formed panels and 0.019-inch minimum thickness for pressformed shingles. 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. Where required, ice barriers shall comply with Section 905.1.2. See Table R503.2.1.1 for minimum allowable panel thickness by span and load.) The installation of thermoset single-ply roofing shall comply with the provisions of this section. Allowable spans for lumber sheathing shall conform to IRC Table R803.1. ASTM B209, 0.024 minimum thickness for roll-formed panels and 0.019-inch minimum thickness for pressformed shingles. Foamed-in-place roof insulation shall be installed in accordance with this chapter and the manufacturer's instructions. Spray-applied polyurethane foam insulation shall comply with ASTM C1029, Type III or IV or ASTM D7425. arrow_right. The installation of mineral-surfaced roll roofing shall comply with this section. 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. Mineral-surfaced roll roofing shall not be applied on roof. The bottom layer shall be 18 inches (457 mm) and the top layer not less than 36 inches (914 mm) wide. The installation of thermoplastic single-ply roofing shall comply with the provisions of this section. The installation of liquid-applied roofing shall comply with the provisions of this section. 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. 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. 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 sprayed polyurethane foam roofing shall comply with the provisions of this section. Wood shakes shall comply with the requirements of Table 905.8.5. The 2020 Minnesota Residential Code adopts the 2018 International Residential Code (IRC). arrow_right. Spaced lumber decking CoL Refer to the manufacturer's technical bulletin regarding requirements for existing deck boards. Liquid-applied roofing shall comply with ASTM C836, C957, D1227, D3468, D6083, D6694 or D6947. Roof penetrations shall be flashed and sealed in accordance with this chapter. 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. Table R803.1 is for roof sheathing which requires 5/8 plywood with rafters 24" o.c. The installation of slate shingles shall comply with the provisions of this section. Install a two-layer #30 felt underlayment system. Wolf Hollow Chapter 1, Fayette County Magistrate Court Wv, Airbnb With Hot Tub Greensboro Nc, 2017 2018 Unc Basketball Roster, Mercari Ship On Your Own Option, What Is Chip Kullik Doing Now, Barbara Meshad Dooley Age, The Glamorous Imperial Concubine Happy Or Sad Ending, SECTION R802 WOOD ROOF FRAMING. Stainless steel fasteners are acceptable for metal roofs. Mineral-surfaced roll roofing shall be fastened to solidly sheathed roofs. Galvanized fasteners shall be used for steel roofs. 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. 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. 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. Part III Building Planning and Construction, 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 904 and 905. Spray-applied polyurethane foam insulation shall comply with ASTM C1029, Type III or IV or ASTM D7425. Same as Maximum Ultimate Design Wind Speed, 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. 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. 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. General Re-Roof Requirements . 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. Built-up 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 mineral-surfaced roll roofing shall comply with this section. 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. Built-up roofs shall be installed in accordance with this chapter and the manufacturer's instructions. The 4-inch-wide (102 mm) strips of self-adhering polymer-modified-bitumen membrane Galvanized fasteners shall be used for steel roofs. Slate shingles shall be fastened to solidly sheathed roofs. Thermoset single-ply membrane roofs shall have a design. Slate shingles shall comply with ASTM C406. Valley flashing shall be not less than 15 inches (381 mm) wide. endstream endobj startxref 12 oz/sq ft for preformed metal shingle systems. Roof valley flashing shall be not less than No. Asphalt shingles shall be tested in accordance with ASTM D7158. The installation of wood shingles shall comply with the provisions of this section. Modified bitumen roofing shall comply with the standards in Table R905.11.2. Flashing for asphalt shingles shall comply with this section. Galvanized fasteners shall be used for steel roofs. R905.2.1 Sheathing requirements. Asphalt shingles shall be used only on roof. For the most common roof sheathing in our area, which is 1/2" nominal (7/16" actual) sheathing over trusses or rafters at 24" on center . Slate shingles 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. R803.1 Lumber sheathing. If re-roofing over wood shingle, or wood shake roofs, additional code requirements may apply. 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 The 2018 IRC specifies the ratios based on climate zone. 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. In areas where there has been a history of ice forming along the eaves causing a backup of water as designated in. Where siding is provided on the vertical sidewall, the vertical leg of the flashing shall be continuous under the siding. 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. 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. Slate shingles shall comply with ASTM C 406. Liquid-applied roofing shall comply with ASTM C 836, C 957, D 1227, D 3468, D 6083, D 6694 or D 6947. Asphalt shingles shall comply with ASTM D3462. Asphalt shingle packaging shall bear a. 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. 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. Liquid-applied roofing shall comply with ASTM C836, C957, D1227, D3468, D6083, D6694 or D6947. 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. 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. Stainless steel fasteners are acceptable for metal roofs. Slate shingles shall be fastened to solidly sheathed roofs. 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. Foam plastic materials and installation shall comply with. 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. Drip edges shall extend not less than. Sprayed polyurethane foam roofs shall have a design. Foamed-in-place roof insulation 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 thermoset 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. 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 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. SECTION R804 COLD-FORMED STEEL ROOF FRAMING. are not required for roofs sheathed with lumber having a nominal width of less than 3 feet Where required, an ice barrier shall comply with Section 905.1.2. The framing assembly incudes horizontal braces, vertical retrofit studs, and compression blocks. 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, In areas where the average daily temperature in January is 25F (-4C)