2304.6.1 Wood structural panel sheathing.
BC § 2304.6.1
Where wood structural panel sheathing is used as the exposed finish on the outside of exterior walls, it shall have an exterior exposure durability classification. Where wood structural panel sheathing is used elsewhere, but not as the exposed finish, it shall be of a type manufactured with exterior glue (Exposure 1 or Exterior). Wood structural panel sheathing, connections and framing spacing shall be in accordance with Table 2304.6.1 for the applicable wind speed and exposure category where used in enclosed buildings with a mean roof height not greater than 30 feet (9144 mm) and a topographic factor (K zt ) of 1.0. Table 2304.6.1Maximum Allowable Stress Design Wind Speed Vasd Permitted for Wood Structural Panel Wall Sheathing Used to Resist Wind Pressures a, b, c Minimum NailMinimum Wood Structural Panel Span RatingMinimum Nominal Panel Thickness (inches)Maximum Wall Stud Spacing (inches)Panel Nail SpacingMaximum Allowable Stress DesignWind Speed, Vasd d (mph)SizePenetration (inches)Edges(inches o.c.)Field(inches o.c.)Wind exposure categoryBCDMinimum NailMinimum Wood Structural Panel Span RatingMinimum Nominal Panel Thickness (inches)Maximum Wall Stud Spacing (inches)Panel Nail SpacingMaximum Allowable Stress DesignWind Speed, Vasd d (mph)SizePenetration (inches)Edges(inches o.c.)Field(inches o.c.)Wind exposure categoryBCD6d common (2.0" × 0.113")1.524/03/816612110908524/167/16166121101009061501251108d common (2.5" × 0.131")1.7524/167/1616612130110105615012511024612110908561109085 For SI: 1 inch = 25.4 mm, 1 mile per hour = 0.447 m/s. a. Panel strength axis shall be parallel or perpendicular to supports. Three-ply plywood sheathing with studs spaced more than 16 inches on center shall be applied with panel strength axis perpendicular to supports. b. The table is based on wind pressures acting toward and away from building surfaces in accordance with Section 30.6 of ASCE 7. Lateral requirements shall be in accordance with Section 2305 or 2308. c. Wood structural panels with span ratings of wall-16 or wall-24 shall be permitted as an alternative to panels with a 24/0 span rating. Plywood siding rated 16 on center or 24 on center shall be permitted as an alternative to panels with a 24/16 span rating. Wall-16 and plywood siding 16 on center shall be used with studs spaced not more than 16 inches on center. d. V asd shall be determined in accordance with Section 1609.3.1.
