Flat Roof Plywood Thickness

Roofs plywood.

Flat roof plywood thickness.

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. That will suffice on a roof with rafters set 16 inches apart with minimal roof loads. For pricing and availability. However you may need to consider bolstering the plywood thickness for a roof that has a higher load.

The standard width is 4 feet. Plytanium 3 8 cat. 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. Foot and with a maximum of spacing of 16 inches between rafters.

This kind of plywood can be used on roofs with minimal load. Steeper rather than flatter roofs will have lesser load per sq. In this case plywood should be a minimum of 3 8 inch thick. For pricing and availability.

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. Minimum thickness most roofs will be sheathed in plywood at least 3 8 inch thick.

Plytanium 23 32 cat ps1 09 square structural pine sheathing application as 4 x 8. The minimum thickness of plywood used for roofing is 3 8 th of an inch. You can get plywood sheets with a length of up to 10 feet. You might be tempted to choose a inch thickness although it s unnecessary in most cases.