Open Roof Sheathing

Both materials are made of wood but osb is more lightweight and costs slightly less.

Open roof sheathing.

Plywood is a bit more expensive than osb but is usually stronger. Osb is lightweight relatively inexpensive and strong enough to resist bending or breaking should someone walk on the roof. 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. Roof sheathing may also be constructed of plywood.

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. Open sheathing also called skip sheathing is composed of boards spaced apart. Written by doityourself staff. Roof sheathing or decking is one of those elements.

Plywood is very durable but tends to cost a bit more and is heavier. Align the long edge of the sheathing with the ends of the. Oriented strand board osb is one of the most popular materials for roof sheathing. On oct 05 2010.

This type of roof sheathing is used under wood shingles and shakes which usually require ventilation on both sides of the roofing material. In the u s roof sheathing is almost always composed of wood usually osb oriented strand board or plywood.