1 2 Plywood Decking For Roofs

Plywood typically comes in 4 8 ft.

1 2 plywood decking for roofs.

For example if your roof is 1 500 ft 2 then it will take 47 sheets of plywood to sheath it. A is smooth and knot free while d the lowest quality has missing knots and cracks. The common grade of plywood for roof sheathing is cdx. Plytanium 23 32 cat ps1 09 square structural pine sheathing application as 4 x 8.

Over time shiplap fir wood resin dissipates causing the boards to shrink crack form knot holes and become extremely brittle. The most common rafter spacing is 24 inches and 5 8 inch plywood is recommended for that. After the 1960s the predominant residential roofing substrate became 1 2 cdx plywood. Foot and with a maximum of spacing of 16 inches between rafters.

Roof sheathing materials plywood. Open spaces form between the once tightly fitted shiplap boards. Oriented strand board is an excellent choice for roof deck wall and subfloor sheathing. Before lumber companies began selling osb the standard choice for sheathing a roof with a 24 inch rafter spacing was 1 2 inch cdx plywood the letters cdx indicate that it is construction grade.

Steeper rather than flatter roofs will have lesser load per sq. This kind of plywood can be used on roofs with minimal load. Provides exceptional dimensional stability and stiffness. Cdx ground contact pressure treated plywood model 131876 45 98 45 98.

Roofs plywood. It also holds roofing nails well. Visual filter title loading. The minimum thickness of plywood used for roofing is 3 8 th of an inch.

1 500 32 46 875 sheets it will be a good idea to get an extra few sheets of plywood when ordering to allow for waste and off cuts. For rafters spaced 20 or more inches apart 1 2 or 5 8 inch plywood is recommended. Severe weather 1 2 in common douglas fir plywood sheathing. Oriented strand board 660663 the home depot.

Today a shiplap roof is usually 60 years old. As a quick primer in plywood each side is rated from a to d. It will support roof. 3 4 plywood 4x8 3 8 plywood plywood subflooring plywood roof sheathing 48 24 sheathing plywood 3 4 in.