Roof Plywood Thicknesses Mixed

Keep in mind that the load of the roof still plays a role in the plywood thickness.

Roof plywood thicknesses mixed.

It will support roof. The most common rafter spacing is 24 inches and 5 8 inch plywood is recommended for that. With edge support and the same snow load 3 8 inch osb can be used. Plywood is often sold in 1 4 1 2 or 3 4 nominal thicknesses but the actual thickness is often 1 32 thinner.

You can get plywood sheets with a length of up to 10 feet. A 3 4 sheet is actually 23 32 thick. Please understand that recommended metal thicknesses will vary based on the design and engineering of the metal product being considered that said here are a few general recommendations. Rafters that are slightly farther apart might require inch or 5 8 inch thick plywood.

Many homes have rafters that are even wider at 24 inches apart and will require a thicker sheet of plywood. Exposed fastener corrugated steel roofing. The standard width is 4 feet. 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.

Typical types of wood used for roof sheathing are oriented strand board known as osb and plywood the most popular being osb. A 1 2 sheet is actually 15 32 thick. These recommendations are with paint. When this is the case experts recommend a 5 8 inch thick sheet.

For rafters spaced 20 or more inches apart 1 2 or 5 8 inch plywood is recommended. Metal roofing thickness recommendations that include paint.