Standard Roof Sheathing

Rafters run from the peak of the roof.

Standard roof sheathing.

Roof sheathing materials plywood. Comes in standard 4 by 8 foot sheets is strong. Apply adhesive along the connection between the roof sheathing and rafters in a continuous bead much like caulk around a bathtub or apply adhesive to two adjacent sides of 1 by 2 blocks 6 inches. Plywood is a bit more expensive but is usually.

Sheathing should be a minimum of 19 32 inch thick. The minimum plywood for roofing. Unlike with plywood siding the plywood sheet to be used for sheathing should be at least 3 8 inch thick. Roofs are framed with rafters or trusses which are rafters joined by internal braces so they install as a single component.

Roof sheathing comes in grid marked 4 by 8 foot sheets and should be installed perpendicular to the frame. The typical thickness range for sheathing is 3 8 to 3 4 inch. Never attach roof sheathing with staples. Roof sheathing or decking is one of those elements.

In the u s roof sheathing is almost always composed of wood usually osb oriented strand board or plywood. Osb is lightweight relatively inexpensive and strong enough to resist bending or breaking should someone walk on the roof. 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. 8d ring shank nails should be used instead.