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I, <br /> ESR-1301 I Most Widely Accepted and Trusted Page 5 of 7 <br /> TABLE 3b—PANEL SIDING-MAXIMUM ULTIMATE COMPONENT AND CLADDING DESIGN WIND SPEED,VWt' <br /> PERFORMANCE MAXIMUM WALL FASTENER SPACING3 MAXIMUM ULTIMATE MAXIMUM ULTIMATE DESIGN <br /> CATEGORY STUD SPACING' (inches o.c.) WIND PRESSURE WIND SPEED,Vu,t4(mph) <br /> (inches) Edges Field (psf) Wind Exposure Category <br /> B C D <br /> 12 77 160 150 130 <br /> 16 6 <br /> 3 6 133 200 180 180 <br /> /8 <br /> 12 51 140 120 110 <br /> 24 6 <br /> 6 102 200 160 150 <br /> 12 74 160 140 130 <br /> 16 6 <br /> 6 133 200 180 180 <br /> 7/16 <br /> 12 50 140 120 110 <br /> 24 6 <br /> 6 99 200 160 150 <br /> 12 69 160 140 130 <br /> 16 6 <br /> s 6 133 200 180 180 <br /> 1 /32 <br /> 12 46 130 115 <br /> 24 6 <br /> 6 92 180 160 150 <br /> For SI: 1 inch=25.4 mm, 1 psf=47.88 Pa, 1 mph= 1.6 kph. <br /> 'Tabulated values assume full penetration of the fastener into the wall studs, i.e.,fastener penetration=fastener length–siding thickness. <br /> 'Wall 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 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 4a—LAP SIDING-MAXIMUM NOMINAL(ALLOWABLE)COMPONENT AND CLADDING DESIGN WIND SPEED,V 1 2 <br /> astl <br /> PERFORMANCE MAXIMUM WALL SIDING MAXIMUM MAXIMUM NOMINAL(ALLOWABLE)WIND <br /> CATEGORY STUD SPACING3 WIDTH ALLOWABLE WIND SPEED,Vasd4(mph) <br /> (inches) (inches) PRESSURE Wind Exposure Category <br /> (psf) <br /> B C D <br /> 6 78 170 150 130 <br /> 3/9 <br /> 16 8 56 150 125 110 <br /> 12 35 120 100 90 <br /> 6 78 170 150 130 <br /> 16 8 56 150 125 110 <br /> 12 35 120 100 90 <br /> 7/16 <br /> 6 52 145 120 110 <br /> - <br /> 24 8 37 120 100 90 <br /> 12 24 90 - - <br /> For SI: 1 inch=25.4 mm, 1 psf=47.88 Pa, 1 mph= 1.6 kph. <br /> 'One fastener per stud located 3/4 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 /> 4Three-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 6 of ASCE 7-05,Section R301.2 of the 2009/2012 IRC, and Section 1609.1.1 of the 2009 IBC. <br />