How Thick Osb For Roof Sheathing

Osb is lightweight relatively inexpensive and strong enough to resist bending or breaking should.

How thick osb for roof sheathing. Typical types of wood used for roof sheathing are oriented strand board known as osb and plywood. Osb comes in 4 by 8 foot sheets as does plywood but the manufacturing process allows the production of longer and wider ones. For pricing and availability. Required sheathing thickness for roofing important factors.

That s considered to be the minimum. You need to find a sheathing with a span rating of at least 32 16 which means either 15 32 or 1 2 thick osb. Plywood is made with three or more layers of thin wood glued together with the grain. Several factors must be considered when determining appropriate roof sheathing thickness such as the.

A roof system consists of several elements working together to protect the home. Osb sheathing 15 32 cat ps2 10 osb sheathing application as 4 x 8. The thickness of plywood used for roof decking depends on the roof slope the spacing of. Roof sheathing or decking is one of those elements.

This minimum will only work if the rafters are set 16 inches apart at most and if the roof doesn t have too much load. In the u s roof sheathing is almost always composed of wood usually osb oriented strand board or plywood. With this thickness any deflection under dead loads only the weight of materials only should prove to be imperceptible. Roof sheathing thickness unlike with plywood siding the plywood sheet to be used for sheathing should be at least 3 8 inch thick.

Thicknesses range from 5 16 to 3 4 inch and the proper one to use. The minimum plywood for roofing plywood is layers of wood.