Gypsum lath shall be installed at right angles to support framing with end joints in adjacent courses staggered by not less than one framing space. It is a prescriptive code. 12 Top plate to top plate GFRPPRQ x 0.162 ) 16 o.c. Fasteners used above grade to attach plywood and all lumber-to-lumber fasteners except those used in knee wall construction shall be of Type 304 or 316 stainless steel . R403.1.6] To resist the increased forces of earthquake ground motion, additional anchorage requirements apply to buildings located in SDCs "D 0," "D 1," and "D 2" and to townhouses in . TABLE R602.3(3) REQUIREMENTS FOR WOOD STRUCTURAL PANEL WALL SHEATHING USED TO RESIST WIND PRESSURES a, b, c; MINIMUM NAIL: This Tip Sheet reflects code requirements of the 2018 International Residential Code (IRC), 2018 Uniform Plumbing Code (UPC), 2020 National Electric Code (NEC) and the 2018 International Fire Code (IFC) with Washington State Amendments. [Ref. Section R602 of the 2018 IRC specifies minimum wall-sheathing thickness and fastening requirements for structural panels. For SI: 1 inch = 25.4 mm, 1 foot = 304.8 mm. Permits and Plans Ridge board requirements for residential structures can be found in Section R802.3 of the 2018 International Residential Code. Fasteners used below grade to attach plywood to the exterior side of exterior basement or crawlspace wall studs, or fasteners used in knee wall construction, shall be of Type 304 or 316 stainless steel. The presentation will provide a systematic overview of the various methods of compliance, while focusing on commonly used structural panel and continuously sheathed options. I'm in the market for a nail gun upgrade (changing brands) and found that many best nail guns only go to 3.25. The International Residential Code covers the prescriptive requirements for roof framing. For those elements that fall outside of the prescriptive criteria, engineering design (i.e., using the IBC) is required (See IRC R301.1.3). the framing member. In the first condition, the 200-pound maximum capacity for conventional rafter-to-wall or truss-to-wall connections using toe-nails is based on capacities calculated from AF&PA's National Design Specification (NDS) for Wood Construction. This section will outline what size a ridge board needs to be and what purpose it serves. Exhaust ducts tor domestic clothes dryers shall contorm to the requirements ot Sections 504.8.1 through 504.86. Confirm with the local building department if the house is in a hurricane-prone region and if local requirements exceed those of the IRC. 18 gauge (0.0478 inches) (1.2 mm) in thickness. Code Requirements The International Residential Code (IRC) is the governing code for one- and two-family dwellings. Maximum design wind speed of 140 miles per hour (63 m/s), Exposure B or C. Maximum ground snow load of 70 psf (3352 Pa), with roof snow load, computed as 0.7p g. The IBC becomes the governing code for the truss design and associated load paths if the . Minimum roof slope of 3:12. Exterior walls of wood-frame construction shall be designed and constructed in accordance with the provisions of this chapter and Figures 602.3(1) and 602.3(2), or in accordance with AWC NDS. face nail: 13: Double top plate splice for SDCs A-D 2 with seismic braced wall line spacing < 25' . The IRC states that (2) 16d nails are needed to nail studs to the plates, why then a 3.25 nail and why do so many nail gun manufacturers not make a gun that shoots up to 3.5 Can any of you expand on this? Nails used for framing and sheathing connections shall have minimum average bending yield strengths as shown: 80 ksi for shank diameter of 0.192 inch (20d common nail), 90 ksi for shank diameters larger than 0.142 inch but not larger than 0.177 inch, and 100 ksi for shank diameters of 0.142 inch or less. Please verify the following before calling for plumbing rough-in inspection. Structural wood sheathing shall be extended to lap the sill plate and nailed to the sill plate using a 4-inch on-center nail pattern along the edges. Other methods, such as foundation straps, may be . R402.1.1 Fasteners.. 312.9 Steel Nail Plates. FIGURE R502.2 FLOOR CONSTRUCTION R502.2.1 Framing at Braced Wall Lines The IRC does not specify requirements for bracing gable end walls for wood framing but has minimum requirements for continuous roof sheathing at gable end walls, including fastener (nail) type, spacing, and . face nail 13 Double top plate splice 8-16d common (3 1 /2 0.162 ); or GER[ x 0.135 ); or 12-10d box (3 x 0.128 ); or 12-3 x 0.131 nails Face nail on each side of end joist (minimum 24 lap (R319.1) Structural wood sheathing shall be nailed to the rim board if present . Exception: See Section 1210.4.3. . face nail 10d box (3 0.128 ); or 3 x 0.131 nails 12 o.c. Middle 1/3 of plate 2018 IRC Essentials Workbook Page 61-65. Components of exterior walls shall be fastened in accordance with Tables 602.3(1) through 602.3(4). The steel nail plate shall extend along the framing member not less than 1 1 / 2 inches (38 mm . This tip sheet reflects code requirements of the 2018 International Residential Code (IRC) with Washington State Amendments. Floors shall be designed and constructed in accordance with the provisions of this chapter, Figure R502.2 and Sections R317 and R318 or in accordance with ANSI AWC NDS. International Residential Code 2015 (IRC 2015) . Permits and Plans Job address shall be posted in a visible location. The applicable uplift force for a particular installation may be determined from Table R802.11 Support spacing for gypsum or metal lath on walls or ceilings shall not exceed 16 inches (406 mm) for 3 / 8 -inch-thick (9.5 mm) or 24 inches (610 mm) for 1 / 2 -inch-thick (12.7 mm) plain gypsum lath. Protective shield plates shall be constructed ot steel, nave a thickness ot 0.062 inch (1.6 mm) and extend not less than 2 inches (51 mm) above sole plates and below top plates. Plastic and copper or copper alloy piping penetrating framing members to within 1 inch (25.4 mm) of the exposed framing shall be protected by steel nail plates not less than No. Storm Drainage Final grade Minimum fall 6" within 10' of foundation . GBA Detail Library Please type the text you see in the image into the text box and submit Truss span not greater than 36 feet. When is a Ridge Beam Required? Maximum roof slope of 12:12. Reason: For the 2015 IRC, a proposal was approved that reduced the dimension to 1 inches to match what the National Electrical Code has for wiring protection. The IRC prescribes anchor bol t criteria for connecting the sill plate to the foundation. Such plates shall cover the area of the pipe where the member is notched or bored, and shall extend not less than 2 inches (51 mm) above sole plates and below top plates. Nails are smooth-common, box or deformed shanks except where otherwise stated. for wood structural panel roof sheathing attached to gable -end roof framing and to intermediate supports within 48 inches of roof edges and ridges, nails shall be spaced at 4 inches on center where the ultimate design wind speed is greater than 130 mph in exposure b or greater than 110 mph in exposure c. spacing exceeding 6 inches on center at Wall sheathing shall be fastened directly to framing members and, where placed on the exterior side of . Based on the 2018 International Residential Code . Nails are smooth-common, box or deformed shanks except where otherwise stated. Please verify the following before calling for roof sheathing, shear wall, or braced wall panel inspection. 504.8 Domestic clothes dryer ducts. 12" o.c. Requirements for braced wall lines, braced wall panel length and location, materials, fasteners, load path, and connections to roof and floor 312.10 Sleeves Sleeves shall be provided to protect piping through concrete and masonry walls, and concrete floors. The steel nail plate shall extend along the framing member not less than 1 1 / 2 inches (38 mm) beyond the outside diameter of the pipe or tubing. Nails used for framing and sheathing connections shall have minimum average bending yield strengths as shown: 80 ksi for shank diameter of 0.192 inch (20d common nail), 90 ksi for shank diameters larger than 0.142 inch but not larger than 0.177 inch, and 100 ksi for shank diameters of 0.142 inch or less. Code (IRC). Tested as specified in design requirements 2018 IRC Essentials Workbook Page 33. Final grade Minimum fall 6 & quot ; within 10 & # x27 of Concrete floors 0.131 nails 12 o.c, and concrete floors 2018 IRC Essentials Workbook Page 61-65 ot! 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