Plywood Roof Sheathing Span Rating

Commonly square edge but may be produced with tongue and groove edges.

Plywood roof sheathing span rating.

1 inch 25 4 mm. Installation details shall conform to sections 2304 7 1 and 2304 7 2 for floor and roof sheathing respectively. 2 4 common performance categories and corresponding span ratings performance category span rating 3 8 24 0 7 16 24 16. Apa rated sheathing panels are produced as plywood or oriented strand board osb.

Where to buy. The first number is the maximum on center o c support spacing in inches for roof sheathing. The left hand number is the maximum recommended center to center spacing for supports in inches when the panel is used for roof sheathing with long dimensions across supports. Apa rated sheathing span rating bond classification mill number apa panel grade product standard and panel grade hud recognition performance category apa rated osb sheathing roof panels performance category apa span rating allowable live load for roofs psf 3 8 24 0 30 7 16 24 16 40 15 32 32 16 70 1 2 32 16 70 19 32 40 20 130 23 32 48 24 175.

Installation manual zip system sheathing wall and roof zip system sheathing and tape fact sheet. Multi span normal duration of load dry conditions panels 24 inches or wider span rating b load governed by c strength axis a perpendicular to supports span center to center of supports inches parallel to supports span center to center of supports inches 12 16 19 2 24 30 32 36 40 48. Plywood is layers of wood. Uniform loads psf on apa rated plywood sheathing.

Floor or roof sheathing conforming with this table shall be deemed to meet the design criteria of section 2304 7. Where to buy 7 16 sheathing 4 9 1 1 18 panel count. Typical size is 4 ft x 8 ft but other sizes may also be produced. The span rating provides a measure of the strength and stiffness in the direction parallel to the grain of the face and back veneers of the panel.

Span rating two numbers separated by a slash. The span rating on apa rated sheathing panels appears as two numbers separated by a slash such as 32 16 48 24 etc a the left hand number denotes the maximum recommended spacing of supports when the panel is used for roof sheathing.