Used To Support Roof Sheathing

To stabilize the rafters support the roofing material and hold the entire roof together roof sheathing is installed.

Used to support roof sheathing.

Sheathing should bethickenough to span the supports and provideasolid base for fastening the roofing materials. Roof sheathing also known as roof decking is a strong layer of wood boards that are fixed to your roof s joists and trusses. 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 attaches to the surface of the rafters or trusses to form the structural skin of the roof.

Board roof sheathing fig. The most common materials for this are oriented strand board osb or plywood both formed of layers of wood bonded into a panel. Plywood used for roof decking is typically called sheathing and. 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.

Continue reading below our video of the day. Generally third grade species of lumber such aspines redwoods and hemlocks are used as roofsheathingboards. What s roof sheathing made of. Your roofer will attach your shingles to these squares or planks of wood.

The cheapest and easiest is to re nail or better yet screw down the sheathing when you replace your roof covering. Common roof sheathing materials include several types which are chosen depending on the budget and weather conditions of the area. Roof sheathing is usually made of either oriented strand board osb or plywood. It is assumed here that you will be applying plywood particle board or wafer board sheathing.

The skeleton of a roof is formed with rafters or trusses generally spaced 16 inches or 24 inches apart from the center of one rafter to the center of the next. With edge support and the same snow load 3 8 inch osb can be used. The attachment of roof sheathing can be improved in one of two ways. 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.