Standard Plywood Thickness For Roofing

Steeper rather than flatter roofs will have lesser load per sq.

Standard plywood thickness for roofing.

Like most other things there is no one right answer for the plywood thickness of your roof. The thickness of plywood used for roof decking depends on the roof slope the spacing of rafters and the weight of other material to be put over the decking as well as the design load the. This plywood is strong and durable enough for use in roofing framing and other exterior structural projects. Plywood thickness for the roof.

For screen reader problems with this website please call 1 800 430 3376 or text 38698 standard carrier rates apply. 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. The most common thickness of plywood is 1 2 inch but plywood thickness can range from 1 8 inch to 3 4 inches. If the roof dips here and there because of the thin plywood the 1 8 jump may no be so bad in the mix of it all jack jul 26 16 at 4 24 here in snow country 1 2 osb is standard with 7 16 being common for walls.

Never attach roof sheathing with staples. 30 years on it s working out fine. It s the standard for spacing of 24 inches in the rafter although as mentioned a 5 8 inch thick is more ideal. This kind of plywood can be used on roofs with minimal load.

Tolerance for utility grade thickness is 1 32 inch and for cabinet grade plywood 1 64 inch. Its size tolerances especially for thickness are smaller that those for the utility grade plywood used in the building trades for roof and wall sheathing subfloors and general use purposes. They can range from the standard 4 x 8 piece to a 4 x 9 or even a 4 x 10. 8d ring shank nails should be used instead.

Sheathing should be a minimum of 19 32 inch thick. One of the most important factors when selecting the plywood for your roof is how thick each piece should be. Roof sheathing comes in grid marked 4 by 8 foot sheets and should be installed perpendicular to the frame. The ideal thickness for the standard rafter spacing of 24 inches is 5 8 th of an.

A half inch thickness is considered to be standard in a lot of areas and it should work just fine considering that it s deemed okay by the roofing contractor after considering the things above. It adds proven performance and durability to new homes room additions and renovations. The typical thickness range for sheathing is 3 8 to 3 4 inch. Foot and with a maximum of spacing of 16 inches between rafters.