The Use Of Concrete Form Boards For Roof Sheathing

It is normally 1 inch 3 4 inch dressed tongue and groove lumber or 3 4 inch plywood.

The use of concrete form boards for roof sheathing.

Each type of roof board is uniquely designed to help protect your roof when used as a fire barrier thermal barrier coverboard recoverboard or parapet wall. With wood roofs slats are a must to avoid rotting the wood shakes. Never attach roof sheathing with staples. When i built my house years ago i poured my basement walls using my subfloor as forms and hundreds of feet of 2x4 s for the walers it worked real nice any tile was layed over concrete board also i poured my garage foundation using my 5 8 roof sheathing for its forms.

The typical thickness range for sheathing is 3 8 to 3 4 inch. Plywood particle board or wafer board roof sheathing is most commonly used being low in cost and easy to apply. It spans the rafters to support the roofing and in the case of panel sheathing such as plywood or osb it acts as a diaphragm with the walls to resist horizontal loads. Concrete is plastic when placed in the form so sheathing should be watertight.

Tongue and groove lumber or plywood gives a. There are several types of sheathing each having a specific function based on its application. Roof sheathing attaches to the surface of the rafters or trusses to form the structural skin of the roof. Roof sheathing comes in grid marked 4 by 8 foot sheets and should be installed perpendicular to the frame.

Sheathing sheathing forms the surface of the concrete. 1 by 8 boards commonly used on the eave and rake overhangs when soffits will not be installed rather than as roof sheathing. If you have chosen to use a rigid roofing metal wood shakes or shingles tile etc you can use 1 x 4 slats instead. The most basic function of sheathing in any application is to form a surface onto which other materials can be applied.

It should be smooth especially if the finished surface is to be exposed. 8d ring shank nails should be used instead. Securock roof boards are a portfolio of high performance roof boards to meet the needs of your low slope commercial roofing project. Sheathing is the board or panel material used in floor wall and roof assemblies of both residential and commercial construction.

Sheathing should be a minimum of 19 32 inch thick.