Plywooding A Roof

Rafters run from the peak of the roof.

Plywooding a roof.

Thickness will range from 3 8 to 3 4 inch depending upon local code. Generally plywood roof decking that has gotten wet and had the shingles applied over it if allowed to dry. The minimum plywood for roofing. Can new plywood be installed on a 40 year old roof without removing the old.

The existing asphalt. When ordering the sheathing divide the total number of square feet of roof surface by 32 square feet a 4 x 8 panel and add an. Roofs are framed with rafters or trusses which are rafters joined by internal braces so they install as a single component. 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.

Osb is lightweight relatively inexpensive and strong enough to resist bending or breaking should someone walk on the roof. The roof s sheathing helps to keep the roof trusses or rafters properly spaced and is the strength that holds. 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.

It s fine and there is no need for the extreme and expensive approaches suggested in some other answers. Plywood is a bit more expensive but is usually. 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. Installing plywood on a roof hello youtubers here s another video about plywood sheathing and composition shingles after replacing all damaged wood and.

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.