This plywood is strong and durable enough for use in roofing framing and other exterior structural projects.
Thickness of exterior plywood on roof.
Never attach roof sheathing with staples.
The minimum thickness of plywood used for roofing is 3 8 th of an inch.
1 inch 25 4 mm.
Foot and with a maximum of spacing of 16 inches between rafters.
What size plywood should you use for your roof.
There are several factors to consider.
A flatter roof with rafters farther apart may need a thickness of up to inch.
Plywood with fewer plies is weaker than a plywood with more plies even if they have the same thickness.
Another issue that many people encounter is what size plywood the roof may need.
Look for something that s graded as exposure 1 or exterior.
This kind of plywood can be used on roofs with minimal load.
So what size plywood should you use for your roof.
Keep in mind that the load of the roof still plays a role in the plywood thickness.
What size plywood for the roof.
Plywood typically comes in 4 8 ft.
Floor or roof sheathing conforming with this table shall be deemed to meet the design criteria of section 2304 7.
What plywood should you use for a roof.
Multi ply is a catchall term for plywood with seven or more plies.
Sheathing should be a minimum of 19 32 inch thick.
Roof sheathing comes in grid marked 4 by 8 foot sheets and should be installed perpendicular to the frame.
Installation details shall conform to sections 2304 7 1 and 2304 7 2 for floor and roof sheathing respectively.
Sheet with varying thickness.
The industry offers a thickness of anywhere from 5 16 inch to inch.
The typical thickness range for sheathing is 3 8 to 3 4 inch.
Steeper rather than flatter roofs will have lesser load per sq.