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, ESR-1301 I Most Widely Accepted and Trusted Page 6 of 7 <br /> TABLE 4b—LAP SIDING-MAXIMUM ULTIMATE COMPONENT AND CLADDING DESIGN WIND SPEED,V„,11'2 <br /> PERFORMANCE MAXIMUM WALL SIDING MAXIMUM MAXIMUM ULTIMATE DESIGN WIND SPEED, <br /> CATEGORY STUD SPACING' WIDTH ULTIMATE WIND V„,t4(mph) <br /> (inches) (inches) PRESSURE Wind Exposure Category <br /> (psf) <br /> B C D <br /> 6 130 200 180 180 <br /> 3/8 16 8 93 180 160 150 <br /> 12 59 150 130 120 <br /> 6 130 200 180 180 <br /> 16 8 93 180 160 150 <br /> 12 59 150 130 120 <br /> 7/16 <br /> 6 86 180 160 140 <br /> 24 8 62 160 130 120 <br /> 12 39 120 - - <br /> For SI: 1 inch=25.4 mm, 1 psf=47.88 Pa, 1 mph=1.6 kph. <br /> 'One fastener per stud located % inch from the top edge of the siding. Each successive course of lap siding must overlap a minimum of <br /> 1 inch. Fastener must have a minimum head diameter of 0.297 inch, a minimum shaft diameter of 0.113 inch and a minimum length of <br /> 2.5 inches(8d box nail). <br /> 2Tabulated values assume a fastener penetration of 11/2 inches into the wall studs. <br /> 3Wall studs must have a minimum specific gravity of 0.42. <br /> °Three-second-gust; based on wind pressures acting toward and away from building surfaces, at 30-feet height in Zone 5 with smallest <br /> effective area per Chapter 26 of ASCE 7-10 and Section 1609.1.1 of the 2012 IBC. <br /> TABLE 5a—PANEL SIDING-MAXIMUM NOMINAL(ALLOWABLE)COMPONENT AND CLADDING DESIGN WIND SPEED,Vasd' <br /> PERFORMANCE MAXIMUM WALL FASTENER SPACING' MAXIMUM MAXIMUM NOMINAL <br /> CATEGORY STUD SPACING2 (inches o.c.) ALLOWABLE WIND (ALLOWABLE)WIND SPEED, <br /> (inches) PRESSURE(psf) Vasd°(mph) <br /> Edges Field Wind Exposure Category <br /> B C D <br /> 12 32 110 90 90 <br /> 16 6 <br /> 3 6 65 150 130 125 <br /> /8 <br /> 12 22 90 - - <br /> 24 6 <br /> 6 43 130 110 100 <br /> 12 32 110 90 90 <br /> 16 6 <br /> 6 65 150 130 125 <br /> 7/16 <br /> 12 22 90 - - <br /> 24 6 <br /> 6 43 130 110 100 <br /> 12 32 110 90 90 <br /> 16 6 <br /> 6 65 150 130 125 <br /> 19/32 <br /> 12 22 90 - - <br /> 24 6 <br /> 6 43 130 110 100 <br /> For SI: 1 inch=25.4 mm, 1 psf=47.88 Pa, 1 mph= 1.6 kph. <br /> 'Tabulated values assume a fastener penetration of 11/2 inches into the wall studs. <br /> 2Wall studs must have a minimum specific gravity of 0.42. <br /> 3Fastener must have a minimum head diameter of 0.297 inch, a minimum shaft diameter of 0.113 inch and a minimum length of 2.5 inches <br /> (8d box nail). <br /> Three-second-gust; based on wind pressures acting toward and away from building surfaces, at 30-feet in Zone 5 with smallest effective area <br /> per Chapter 6 of ASCE 7-05, Section R301.2 of the 2009/2012 IRC,and Section 1609.1.1 of the 2009 IBC. <br />