Flat Roof Plywood Thickness

Plytanium 3 8 cat.

Flat roof plywood thickness.

For pricing and availability. Plytanium 23 32 cat ps1 09 square structural pine sheathing application as 4 x 8. The standard width is 4 feet. In this case plywood should be a minimum of 3 8 inch thick.

You might be tempted to choose a inch thickness although it s unnecessary in most cases. The minimum thickness of plywood used for roofing is 3 8 th of an inch. The ideal thickness for the standard rafter spacing of 24 inches is 5 8 th of an inch. Steeper rather than flatter roofs will have lesser load per sq.

This kind of plywood can be used on roofs with minimal load. 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. Roofs plywood. Foot and with a maximum of spacing of 16 inches between rafters.

However you may need to consider bolstering the plywood thickness for a roof that has a higher load. 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. With edge support and the same snow load 3 8 inch osb can be used.

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