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2007 SUPPLEMENT TO THE IRC <br />CHAPTER 6 <br />WALL CONSTRUCTION <br />Table R602.3(1) Change table and footnote h to read as shown: ( RB170-06/07; S72-06/07 Part 11, S75-06/07 <br />Part 11) <br />DESCRIPTION OF <br />BUILDING <br />MATERIALS <br />Wood structural panels, <br />3/8" - 1/2 <br />1/2" structural cellulosic <br />fiberboard sheathing <br />25/32" structural <br />cellulosic fiberboard <br />sheathing <br />1/2" gypsum sheathingd <br />5/8" gypsum sheathing° <br />For SI: 1 inch = 25.4 mm <br />TABLE R602.3(1) <br />FASTENER SCHEDULE STRUCTURAL MEMBERS <br />DESCRIPTION OF <br />FASTENER'." <br />SPACING OF FASTENERS <br />Edges (Inches) <br />'Intermediate supports'u <br />(inches) <br />subfloor, roof and wall sheathing to framing, and particleboard wall sheathing to framing <br />6d common (2 x 0.113—) nail <br />(subfloor wall) 8d common (21/2 x <br />0.131 ) nail (roof) <br />Other wall sheathing" <br />1 1/2" galvanized roofing nail, 7/16" <br />crown or 1" crown staple 16 ga., 1 <br />1/4" long <br />1 3/4" galvanized roofing nail, 7/16" <br />crown or 1" crown staple 16 ga., 1 <br />1/2" long <br />1W galvanized roofing nail; staple <br />galvanized, 1 W long; 1 %" screws, <br />Type W or S <br />1 3/4" galvanized roofing nail; staple <br />galvanized, 1 5/8" long; 1 5/8" <br />screws, Type W or S <br />6 <br />3 <br />3 <br />4 <br />4 <br />1 foot = 304.8 mm, 1 mile per hour = 0.447 m/s; lksi = 6.895 MPa. <br />12° <br />6 <br />6 <br />8 <br />8 <br />h. Gypsum sheathing shall conform to ASTM C 1396 and shall be installed in accordance with GA 253. <br />Fiberboard sheathing shall conform to ASTM C 208. <br />(Portions of table and footnotes not shown remain unchanged) <br />Table R6023(3) Change table to read as shown: (S72-06/07 Part 11) <br />TABLE R602.3(3) <br />WOOD STRUCTURAL PANEL WALL SHEATHING <br />Panel Span Rating <br />16/0, 20/0, or wall — 16 o.c. <br />24/0, 24/16, 32/16 or wall — 24 o.c. <br />Panel Nominal <br />Thickness <br />(inch) <br />3/8 <br />3/8, 7/10, 15/32, 1/2 <br />For SI: 1 inch = 25.4 mm. <br />a. Blocking of horizontal joints shall not be required. <br />b. Plywood sheathing 3/8 -inch thick or less shall be applied with long dimension across studs. <br />c. Three-ply plywood panels shall be applied with long dimension across studs. <br />Maximum Stud Spacing (inches) <br />Stud <br />16 <br />24 <br />Siding nailed to:. <br />Sheathing <br />16b <br />24` <br />Section R602.6.1 Change to read as shown: (R8172-06/07) <br />R602.6.1 Drilling and notching of top plate. When piping or ductwork is placed in or partly in an exterior wall or <br />interior load-bearing wall, necessitating cutting, drilling or notching of the top plate by more than 50 percent of its <br />width, a galvanized metal tie of not less than 0.054 inch thick (1.37 mm) (16 ga) and 1 1/2 inches (38 mm) wide <br />shall be fastened across and to the plate at each side of the opening with not less than eight 10d (0.148 inch <br />diameter) nails having a minimum length of 1 1/2 inches (38 mm) nails at each side or equivalent. The metal tie <br />must extend a minimum of 6 inches past the opening. See Figure R602.6.1. <br />Exception: When the entire side of the wall with the notch or cut is covered by wood structural panel <br />sheathing. <br />IRC -37 <br />Copyrighted 0 27 ICC (ALL RIGHTS RESERVED) licensed to Nell Erickson pursuant Us License Agreement with ICC No funher reproductiord authorized or distnbution authorized. <br />ANY UNAUTHROIZED REPRODUCTION OR DISTRIBUTION IS A VIOLATION OF THE F EDERAL COPYRIGHT ACT AND THE LICENSEE AGREEMENT. AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER <br />