Used To Support Roof Sheathing

Board roof sheathing fig.

Used to support roof sheathing.

Plywood used for roof decking is typically called sheathing and. 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. Generally third grade species of lumber such aspines redwoods and hemlocks are used as roofsheathingboards. With wood roofs slats are a must to avoid rotting the wood shakes.

Types of sheathing typical types of wood used for roof sheathing are oriented strand board known as osb and plywood the most popular being osb. Roof sheathing is usually made of either oriented strand board osb or plywood. Roof sheathing attaches to the surface of the rafters or trusses to form the structural skin of the roof. Sheathing should bethickenough to span the supports and provideasolid base for fastening the roofing materials.

6 39 used underasphaltshingles metal sheet roofing or other. The most common materials for this are oriented strand board osb or plywood both formed of layers of wood bonded into a panel. It is assumed here that you will be applying plywood particle board or wafer board sheathing. Common roof sheathing materials include several types which are chosen depending on the budget and weather conditions of the area.

Your roofer will attach your shingles to these squares or planks of wood. With edge support and the same snow load 3 8 inch osb can be used. The cheapest and easiest is to re nail or better yet screw down the sheathing when you replace your roof covering. Continue reading below our video of the day.

If you have chosen to use a rigid roofing metal wood shakes or shingles tile etc you can use 1 x 4 slats instead. 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. To stabilize the rafters support the roofing material and hold the entire roof together roof sheathing is installed. The attachment of roof sheathing can be improved in one of two ways.