Plywooding A Roof

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

Plywooding a roof.

In the u s roof sheathing is almost always composed of wood usually osb oriented strand board or plywood. 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. Plywood particle board or wafer board roof sheathing is most commonly used being low in cost and easy to apply. Osb is lightweight relatively inexpensive and strong enough to resist bending or breaking should someone walk on the roof.

It s fine and there is no need for the extreme and expensive approaches suggested in some other answers. 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. Generally plywood roof decking that has gotten wet and had the shingles applied over it if allowed to dry.

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. The roof s sheathing helps to keep the roof trusses or rafters properly spaced and is the strength that holds. 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 minimum plywood for roofing.

Rafters run from the peak of the roof. Can new plywood be installed on a 40 year old roof without removing the old. The existing asphalt. Plywood is a bit more expensive but is usually.

Roof sheathing or decking is one of those elements. Roy gingrich of ellicott city has a 40 year old house with an asphalt shingle roof surface.