Plywooding A Roof

Can new plywood be installed on a 40 year old roof without removing the old.

Plywooding a roof.

In the u s roof sheathing is almost always composed of wood usually osb oriented strand board or plywood. It s fine and there is no need for the extreme and expensive approaches suggested in some other answers. 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. The roof s sheathing helps to keep the roof trusses or rafters properly spaced and is the strength that holds.

Roof sheathing or decking is one of those elements. Plywood is a bit more expensive but is usually. Rafters run from the peak of the roof. Roofs are framed with rafters or trusses which are rafters joined by internal braces so they install as a single component.

Installing plywood on a roof hello youtubers here s another video about plywood sheathing and composition shingles after replacing all damaged wood and. Choose an exterior c d grade. Osb is lightweight relatively inexpensive and strong enough to resist bending or breaking should someone walk on the roof. Generally plywood roof decking that has gotten wet and had the shingles applied over it if allowed to dry.

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. The minimum plywood for roofing. Roof sheathing is a lot more than just flat panels onto which shingles are attached. The existing asphalt.

Roy gingrich of ellicott city has a 40 year old house with an asphalt shingle roof surface. Plywood particle board or wafer board roof sheathing is most commonly used being low in cost and easy to apply.