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2007 SUPPLEMENT TO THE IRC 12. MAX. • SDC A B AND C CORNER 8'-0' MAIL - SDC DP Di AND D, DETAIL PER rcORNER DETAIL PER FIGURE R602.10.4.3(1) BRACED WALL PANELS MEETING MINI REOUIRED LENGTH PER SECTION 'ay 10,4 eaALL OTHER FRAMED PORTIONS OF WALL ALSO SHEATH®) Ib TIE•DOWN DEVICE IN LIEU OF CORNER RETURN FIGURE R602.10.4.3(4) CONTINUOUSLY SHEATHED BRACED WALL LINE — FIRST BRACED WALL PANEL AWAY FROM END OF WALL LINE WITH TIE DOWN R602.10.4.4 Braced wall percentage. In addition to bracing percentage adjustments specified elsewhere in this code, the braced wall percentages for Method 3 from Table 602.10.1(1) shall be permitted to be multiplied by a factor in accordance with Table R602.10.4.4. TABLE R602.10.4.4 ADJUSTMENT FACTORS TO THE PERCENTAGE OF REQUIRED BRACING PER WALL LINE — CONTINUOUSLY SHEATHED ADJUSTMENT BASED ON MAXIMUM WALL CLEAR OPENING HEIGHT: Continuous wood structural panel sheathing when maximum opening height in wall line does not exceed a (Section 301.22.2.1 85% of wall height MULTIPLY PERCENTAGE OF BRACING PER WALL LINE BY: 67% of wall height a. Percentage of bracing for continuous wood structural panel sheathing shall be based on Method 3 requirements. R602.10.4.5 4:1 aspect ratio segments at garage door openings used with continuous structural panel sheathing. A 4:1 aspect ratio shall be permitted for full -height sheathed wall segments on either side of garage openings that support light frame roofs only, with roof covering dead loads of 3 psf (0.14 kN/m2) or less. For purposes of calculating the percentage of panel bracing required by Table R602.10.1(1), the length of the full height sheathing segment shall be equal to its measured length, This option is limited to one wall of the garage. R602.10.4.6 6:1 aspect ratio segments used with continuous structural panel sheathing. Wall segments having a maximum 6:1 height to width ratio shall be permitted to be built in accordance with Figure R602.10.4.6 The maximum 6:1 height -to -width ratio is based on height being measured from top of header to the bottom of the wall segment bottom -plate. For purposes of calculating the percentage of panel bracing required by Table R602.10.1(1), the width of the full -height sheathing segment shalt; be equal to its measured width. Comers at the ends of walls using this option shall be constructed in accordance with Figure R602.10.4.3(1). The reduction factors for continuously braced walls from Section R602 10,4.4 shall be applied when calculating applicable percentages of wall bracing, The number of wall segments having a maximum 6:1 height to width ratio in a wall line shall not exceed four, In multi -story buildings, wall segments having a maximum 6:1 height to width ratio are not permitted to be directly stacked vertically. For purposes of resisting wind ressures acting perpendicular to the wall, in accordance with Section 8301 2, the minimum requirements of Figure R602.10.4.6 shall be sufficient for wind speeds less than 110 mph in Exposure Category B. For Exposure Categories C and D, the header to jack stud strap requirements and the number of additional jack studs shall be in accordance with Table R602,10.4.6. R602.10.4.7 Continuously -sheathed braced wall lines. Where a continuously -sheathed braced wall line is used in Seismic Design Categories D®, Di, and 02 or regions where the basic wind speed exceeds 100 miles per hour, all other exterior braced wall lines in the same story shall be continuously sheathed. Copyrighted 0 20071 CC (ALL RIGHTS RESERVEDr licensed to Neil Enckaon pursuant to License Agreement with ICC No further reproductions authorized or distribution authorized, ANY UNAUTHROIZED REPRODUCTION OR DISTRIBUTION ISA VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CR M LL PENALTIES THEREUNDER IRC -51