Open Roof Sheathing

Plywood is very durable but tends to cost a bit more and is heavier.

Open roof sheathing.

Both materials are made of wood but osb is more lightweight and costs slightly less. In the u s roof sheathing is almost always composed of wood usually osb oriented strand board or plywood. Osb is lightweight cheap and strong enough to resist bending or breaking should someone be walking on the roof. Osb is lightweight relatively inexpensive and strong enough to resist bending or breaking should someone walk on the roof.

Oriented strand board osb is one of the most popular materials for roof sheathing. On oct 05 2010. Written by doityourself staff. This type of roof sheathing is used under wood shingles and shakes which usually require ventilation on both sides of the roofing material.

Roof sheathing is a layer of plywood wafer board or wood planks which is nailed on the rafters and stands between them and the shingles that finish the roofing. Align the long edge of the sheathing with the ends of the. Roof sheathing is usually made of either oriented strand board osb or plywood. Roof sheathing may also be constructed of plywood.

Plywood is a bit more expensive than osb but is usually stronger. Position the first piece of plywood or oriented strand board sheathing on the bottom edge of the rafter tails at one end of the roof.