Plywood Roof Flat

In roofing plywood is often selected due to its strength.

Plywood roof flat.

Elasto barrier and embed contouring roof fabric into wet coating. Many homes have rafters that are even wider at 24 inches apart and will require a thicker sheet of plywood. In this case you need 47 sheets rounded off from 46 88. 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.

Divide that by 32 the square footage of each 4 8 plywood sheet. Of course you don t need to live in a modern house to deal with a flat roof. Use seam tape on plywood joints and flashing where deck meets the house seam tape can be seen upon finished. Flat roofs aren t architecturally logical as rain and snow will shed much more quickly off a sloped roof.

Let s say that your roof has a total of 1 500 square feet. The number you ll get is the number of sheets that you need. When used for roofing plywood panels are covered and protected by a variety of building materials that keep the elements at bay including roof felt underlayment flashing and shingles. In roofing plywood can be used as roof decking.

Apply 2 gallons per 100 sq. Why is plywood used in roofing. Sheathing sizes 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. For rafters spaced 20 or more inches apart 1 2 or 5 8 inch plywood is recommended.

The most common uses for plywood include support for floors walls roofs and garages in residential construction. Rafters that are slightly farther apart might require inch or 5 8 inch thick plywood. Yet for historic modern style buildings like this old house s cambridge tv project flat roofs are at the core of the architecture meant to reflect the broad horizontal lines of the natural landscape. Roof decking is the material that lies on top of the main roofing structure and the underlayment and roof covering is applied on top.

Finish with one to two coats of. The most common rafter spacing is 24 inches and 5 8 inch plywood is recommended for that. It will support roof.