Plywood Roofing Sheet Requirement

Plywood sheathing delivers outstanding rigidity strength and versatility and is an excellent choice for light frame wall and roof assemblies in weather protected applications.

Plywood roofing sheet requirement.

This kind of plywood can be used on roofs with minimal load. 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. Unlike with plywood siding the plywood sheet to be used for sheathing should be at least 3 8 inch thick. These thin layers also called plies are glued together in alternating perpendicular directions to create a cross graining pattern.

Plywood is a popular choice for residential and light duty construction and is made from thin sheets of veneer that have been peeled from debarked wood. Osb and plywood come in thicknesses ranging from 5 16 to 3 4 inch and the thickness needed for a particular roof depends on several factors including rafter spacing expected load and roof design. It is typically made in 4 by 8 foot sheets although longer panels are available for special purposes. Why is plywood used in roofing.

However you might find that osb can better suit your needs than plywood for the roof. Both cdx plywood and osb tend to come in standard sheets of four foot by eight foot 4 8. Foot and with a maximum of spacing of 16 inches between rafters. Roof sheathing comes in grid marked 4 by 8 foot sheets and should be installed perpendicular to the frame.

That s considered to be the minimum. More product details close. Steeper rather than flatter roofs will have lesser load per sq. Plywood is made with three or more layers of thin wood glued together with the grain alternating.

The typical thickness range for sheathing is 3 8 to 3 4 inch. It is formed from multiple layers of wood bonded together with a glue and the grains run in alternate directions through each layer which ensures the board s strength is. Because of its construction some manufacturers actually make larger sheets of osb. This pattern results in added strength and stability that resists shrinkage and expansion.

Sheathing should be a minimum of 19 32 inch thick. The minimum thickness of plywood used for roofing is 3 8 th of an inch. 8d ring shank nails should be used instead. Plywood typically comes in 4 8 ft.

In roofing plywood is often selected due to its strength. Sheet with varying thickness.