Plywooding A Roof

Shingle roofs are installed every day over wood decking that has been wet by rain.

Plywooding a roof.

Osb is lightweight relatively inexpensive and strong enough to resist bending or breaking should someone walk on the roof. Plywood is a bit more expensive but is usually. Choose an exterior c d grade. In the u s roof sheathing is almost always composed of wood usually osb oriented strand board or plywood.

Generally plywood roof decking that has gotten wet and had the shingles applied over it if allowed to dry. Plywood particle board or wafer board roof sheathing is most commonly used being low in cost and easy to apply. Rafters run from the peak of the roof. Installing plywood on a roof hello youtubers here s another video about plywood sheathing and composition shingles after replacing all damaged wood and.

The minimum plywood for roofing. Roof sheathing is a lot more than just flat panels onto which shingles are attached. Roofs are framed with rafters or trusses which are rafters joined by internal braces so they install as a single component. Can new plywood be installed on a 40 year old roof without removing the old.

Roof sheathing or decking is one of those elements. Thickness will range from 3 8 to 3 4 inch depending upon local code. Plywooding over old roof deck the house was built in 1953 it is a rancher in 1987 when i did her roof for her after my parents just moved in there was 3 coats of shingles on it we thought 2. It s fine and there is no need for the extreme and expensive approaches suggested in some other answers.

The existing asphalt. Where a 1 2 sheet butts up against a 3 8 sheet the 3 8 side can have several strips of roofing felt narrow on the bottom then progressively wider applied to ease the transition before the base layer of felt is applied to the whole roof.