Standard Roof Sheathing Size

Roof sheathing materials plywood.

Standard roof sheathing size.

Comes in standard 4 by 8 foot sheets is strong. Before lumber companies began selling osb the standard choice for sheathing a roof with a 24 inch rafter spacing was 1 2 inch cdx plywood the letters cdx indicate that it is construction grade. 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. The most common rafter spacing is 24 inches and 5 8 inch plywood is recommended for that.

Roof sheathing comes in grid marked 4 by 8 foot sheets and should be installed perpendicular to the frame. And if you re still wondering what roof sheathing is and what materials are typically used read on and satisfy your curiosity. That s considered to be the minimum. Never attach roof sheathing with staples.

3 8 apa rated sheathing is typically rated for a 24 span distance between rafters in a roof. Unlike with plywood siding the plywood sheet to be used for sheathing should be at least 3 8 inch thick. If you re in search of quotes for a roof sheathing job improvenet can put you in touch with up to four local contractors for free. Sheathing should be a minimum of 19 32 inch thick.

Where a 1 2 sheet butts up against a 3 8 sheet the 3 8 side can have several strips of roofing felt narrow on the bottom then progressively wider applied to ease the transition before the base layer of felt is applied to the whole roof.