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ESR-1301 I Most Widely Accepted and Trusted Page 3 of 7 N. 1. Mill number. 4. Span rating. 2. The evaluation report number(ESR-1301). 5. Performance category (based on customary inch 3. Grade/exposure. fractions). TABLE 1—ALLOWABLE RACKING SHEAR(plf)FOR LP SmartSide®Precision PANEL SIDING—SHEATHING SHEAR WALLS WITH FRAMING OF DOUGLAS FIR–LARCH OR SOUTHERN PINE FOR WIND OR SEISMIC LOADING1'2'3 PERFORMANCE MINIMUM PANELS APPLIED DIRECTLY TO FRAMING CATEGORY NAIL PENETRATION IN Nail Size(Common or Nail Spacing at Panel Edges FRAMING(inches) Galvanized (inches) Box) 6 4 3 24 5/165'6180 270 350 450 3/65,6 1 1/4 6d 200 300 390 510 3/65.6 220 320 410 530 11/2 8d 7/165 240 350 450 585 19/325 15/6 10d 340 510 6654 870 For SI: 1 inch=25.4 mm, 1 plf= 14.6 N/m. 1For framing of other species: (a) Find specific gravity for species of lumber in AF & PA National Design Specification; (b) find shear value from table for nails size; c) multiply value by 0.82 for species with specific gravity greater than or equal to 0.42 but less than 0.49, or 0.65 for species with specific gravity less than 0.42. 2AIl panel edges must be backed with 2-inch nominal or wider framing. Panels must be installed with the long dimension oriented in the vertical direction. Space nails 6 inches o.c. along intermediate framing members for 3/6 category and 7/16 category panels installed on studs spaced 24 inches o.c. For other conditions and panel thicknesses,space nails 12 inches o.c.on intermediate supports. 3The values are for short-term loads due to wind or earthquake (133% increase) and must be reduced by 25 percent for normal duration of loading. °Framing at panel edges must be 3 inches nominal or wider and nails must be staggered where nails are spaced 2 inches o.c.,and where 10d nails having penetration into framing of more than 15/6 inches are spaced 3 inches, or less, o.c. Exception: Unless otherwise required, 2-inch nominal framing may be used where full nailing surface is available and nails are staggered. 5Except as noted in Footnote 7, panel thickness at point of nailing at panel edges determines applicable shear values, except that 3/6 category panels nailed at shiplap edges use shear values for 5/16 category panels, and /16 and 19/32 category panel sidings nailed at shiplap edges use shear values for 3/6 category panels. 6Shiplap edges must be double-nailed; one nail must be placed in the underlap and a second nail must be placed in the overlap at the nail spacing specified for the applicable shear value. 'Fasteners must not be installed in panel siding grooves in the field of the panel siding or when the panel siding grooves occur at cut edges of the panel siding. TABLE 2a—LAP SIDING-MAXIMUM NOMINAL(ALLOWABLE)COMPONENT AND CLADDING DESIGN WIND SPEED,Vas91'2 PERFORMANCE MAXIMUM WALL SIDING MAXIMUM MAXIMUM NOMINAL(ALLOWABLE)WIND CATEGORY STUD SPACING' WIDTH ALLOWABLE WIND SPEED,Vasd4(mph) (inches) (inches) PRESSURE Wind Exposure Category (psf) B C D 6 80 170 150 140 3/6 16 8 79 170 150 140 12 50 140 120 110 6 80 170 150 140 16 8 76 170 150 130 12 49 140 120 110 765 6 71 170 145 130 24 8 51 155 120 110 12 32 110 90 90 For SI: 1 inch=25.4 mm, 1 psf=47.88 Pa, 1 mph= 1.6 kph. 10ne fastener per stud located 3A inch from the top edge of the siding. Each successive course of lap siding must overlap a minimum of 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 2.5 inches(8d box nail). 2Tabulated values assume full penetration of the fastener into the wall studs, i.e.,fastener penetration=fastener length–siding thickness. 3Wall studs must have a minimum specific gravity of 0.42. °Three-second-gust; based on wind pressures acting toward and away from building surfaces, at 30-feet height in Zone 5 with smallest 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.