Plywood Thickness For Roofing

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.

Plywood thickness for roofing.

When this is the case experts recommend a 5 8 inch thick sheet. Sheets of 7 16 inch thick with no edge support can be used in an area where the snow load is 30 pounds per square foot. We also carry pre cut project panels that are available in different sizes that may vary by store. Plywood is made with three or more layers of thin wood glued together with the grain.

With edge support and the same snow load 3 8 inch osb can be used. The ideal thickness for the standard rafter spacing of 24 inches is 5 8 th of an inch. The minimum plywood for roofing plywood is layers of wood. Many homes have rafters that are even wider at 24 inches apart and will require a thicker sheet of plywood.

The minimum thickness of plywood used for roofing is 3 8 th of an inch. The most common size for plywood sheets is 4 x 8 feet followed by 5 x 5 feet. That s considered to be the minimum. Typical types of wood used for roof sheathing are oriented strand board known as osb and plywood the most popular being osb.

The most common thickness of plywood is 1 2 inch but plywood thickness can range from 1 8 inch. That s considered to be the minimum. Steeper rather than flatter roofs will have lesser load per sq. 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.

Many factors affect thickness. The thickness of plywood used for roof decking depends on the roof slope the spacing of. Keep in mind that the load of the roof still plays a role in the plywood thickness. This kind of plywood can be used on roofs with minimal load.