Re Sheathing A Roof

The most common reason to replace roof sheathing is when you re roof your home but there are a few other signs to watch out for that will tell you it s time to replace your.

Re sheathing a roof.

Roof sheathing is an important component of your overall roofing system. This old house general contractor tom silva prefers this route even when the roof is just a single layer so he can find the source of any water damage upgrade the flashing and install. Roof sheathing comes in grid marked 4 by 8 foot sheets and should be installed perpendicular to the frame. Because the plywood roof sheathing under the shingles has become brittle and weak he plans to install new plywood as well as new shingles.

More expensive because of the additional labor and materials peeling off the old roof down to the sheathing is your only option if you already have two layers. In the u s roof sheathing is almost always composed of wood usually osb oriented strand board or plywood. When a house is re roofed they strip the old shingles and paper repair any bad skip sheathing boards and lay sheets of 3 8 osb on the skip sheathing for a new roof deck. Starting with how to place the first row of sheathing we cover fastening methods the use of h clips stagg.

If yours is old outdated or damaged you ll want to have it replaced as soon as possible. Roof sheathing is a lot more than just flat panels onto which shingles are attached. Plywood is a bit more expensive but is usually. We go in depth on how to install roof sheathing.

The typical thickness range for sheathing is 3 8 to 3 4 inch. Re sheathing a roof check with your local building code most cities will allow you to install new decking over existing. The roof s sheathing helps to keep the roof trusses or rafters properly spaced and is the strength that holds. Sheathing should be a minimum of 19 32 inch thick.

Roof sheathing or decking is one of those elements. 8d ring shank nails should be used instead. Thus a tear off would be needed when re roofing an. Osb is lightweight relatively inexpensive and strong enough to resist bending or breaking should someone walk on the roof.

How to correctly install plywood or osb roof sheathing.