For rafters spaced 20 or more inches apart 1 2 or 5 8 inch plywood is recommended.
Standard roof sheathing size.
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.
Roof sheathing materials plywood.
The most common rafter spacing is 24 inches and 5 8 inch plywood is recommended for that.
And if you re still wondering what roof sheathing is and what materials are typically used read on and satisfy your curiosity.
The typical thickness range for sheathing is 3 8 to 3 4 inch.
Never attach roof sheathing with staples.
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.
Unlike with plywood siding the plywood sheet to be used for sheathing should be at least 3 8 inch thick.
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.
Sheathing should be a minimum of 19 32 inch thick.
3 8 apa rated sheathing is typically rated for a 24 span distance between rafters in a roof.
That s considered to be the minimum.
Comes in standard 4 by 8 foot sheets is strong.