In the u s roof sheathing is almost always composed of wood usually osb oriented strand board or plywood.
Plywooding a roof.
Roof sheathing or decking is one of those elements.
Installing plywood on a roof hello youtubers here s another video about plywood sheathing and composition shingles after replacing all damaged wood and.
Roofs are framed with rafters or trusses which are rafters joined by internal braces so they install as a single component.
Choose an exterior c d grade.
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.
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.
It s fine and there is no need for the extreme and expensive approaches suggested in some other answers.
Thickness will range from 3 8 to 3 4 inch depending upon local code.
Plywood is a bit more expensive but is usually.
Plywood particle board or wafer board roof sheathing is most commonly used being low in cost and easy to apply.
Shingle roofs are installed every day over wood decking that has been wet by rain.
The existing asphalt.
The minimum plywood for roofing.
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.
Rafters run from the peak of the roof.
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.
Can new plywood be installed on a 40 year old roof without removing the old.