Thickness Of Exterior Plywood On Roof

What size plywood for the roof.

Thickness of exterior plywood on roof. There are several factors to consider. 8d ring shank nails should be used instead. A flatter roof with rafters farther apart may need a thickness of up to inch. Plywood typically comes in 4 8 ft.

So what size plywood should you use for your roof. Roof sheathing comes in grid marked 4 by 8 foot sheets and should be installed perpendicular to the frame. Floor or roof sheathing conforming with this table shall be deemed to meet the design criteria of section 2304 7. Look for something that s graded as exposure 1 or exterior.

Sheathing should be a minimum of 19 32 inch thick. What plywood should you use for a roof. The thickness of plywood used for roof decking depends on the roof slope the spacing of rafters and the weight of other material to be put over the decking as well as the design load the. Plywood with fewer plies is weaker than a plywood with more plies even if they have the same thickness.

Never attach roof sheathing with staples. Multi ply is a catchall term for plywood with seven or more plies. The minimum thickness of plywood used for roofing is 3 8 th of an inch. What size plywood should you use for your roof.

This kind of plywood can be used on roofs with minimal load. The typical thickness range for sheathing is 3 8 to 3 4 inch. Keep in mind that the load of the roof still plays a role in the plywood thickness. This plywood is strong and durable enough for use in roofing framing and other exterior structural projects.

Another issue that many people encounter is what size plywood the roof may need. Foot and with a maximum of spacing of 16 inches between rafters. Installation details shall conform to sections 2304 7 1 and 2304 7 2 for floor and roof sheathing respectively. 1 inch 25 4 mm.

The industry offers a thickness of anywhere from 5 16 inch to inch.