How Thick Osb For Roof Sheathing

Roof sheathing thickness unlike with plywood siding the plywood sheet to be used for sheathing should be at least 3 8 inch thick.

How thick osb for roof sheathing.

A roof system consists of several elements working together to protect the home. Thicknesses range from 5 16 to 3 4 inch and the proper one to use. Osb comes in 4 by 8 foot sheets as does plywood but the manufacturing process allows the production of longer and wider ones. 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.

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. Zip system 5 8 cat ps2 10 tongue and groove osb sheathing application as 4 x 8. That s considered to be the minimum. The minimum plywood for roofing plywood is layers of wood.

Many factors affect thickness. Typical types of wood used for roof sheathing are oriented strand board known as osb and plywood. For pricing and availability. Several factors must be considered when determining appropriate roof sheathing thickness such as the.

With this thickness any deflection under dead loads only the weight of materials only should prove to be imperceptible. Required sheathing thickness for roofing important factors. Osb sheathing 15 32 cat ps2 10 osb sheathing application as 4 x 8. Plywood is made with three or more layers of thin wood glued together with the grain.

Roof sheathing or decking is one of those elements. Osb is lightweight relatively inexpensive and strong enough to resist bending or breaking should.