Flat Roof Plywood Thickness

An exception to this standard however may occur if you intend to install slate concrete or tile shingles on your roof.

Flat roof plywood thickness.

With edge support and the same snow load 3 8 inch osb can be used. You might be tempted to choose a inch thickness although it s unnecessary in most cases. Roofs plywood. In this case plywood should be a minimum of 3 8 inch thick.

This kind of plywood can be used on roofs with minimal load. Plytanium 3 8 cat. For pricing and availability. The minimum thickness of plywood used for roofing is 3 8 th of an inch.

Minimum thickness most roofs will be sheathed in plywood at least 3 8 inch thick. You can get plywood sheets with a length of up to 10 feet. It s the standard for spacing of 24 inches in the rafter although as mentioned a 5 8 inch thick is more ideal. The ideal thickness for the standard rafter spacing of 24 inches is 5 8 th of an inch.

Loads will vary with the. Standard roof sheathing which consists of 4 by 8 sheets of plywood or oriented strand board or osb is 1 2 inch thick and attaches directly to the roof rafters or the roof trusses. Foot and with a maximum of spacing of 16 inches between rafters. That will suffice on a roof with rafters set 16 inches apart with minimal roof loads.

A roof that lays practically flat will have a much heavier load than a steeper roof that allows rain snow and ice to roll right off. Woodwool slabs should be no less than 50mm thick and conform to bs en 13168. Steeper rather than flatter roofs will have lesser load per sq. 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.

Plytanium 23 32 cat ps1 09 square structural pine sheathing application as 4 x 8. However you may need to consider bolstering the plywood thickness for a roof that has a higher load. For pricing and availability.