How To Extend Roof Sheathing On An Already Shingled Roof

Installing a new roof over an existing one also called a layover or nailover is often possible although not always the best option.

How to extend roof sheathing on an already shingled roof. Here s a guide to what you can do as a homeowner to make your current roof last as long as possible. It spans the rafters to support the roofing and in the case of panel sheathing such as plywood or osb it acts as a diaphragm with the walls to resist horizontal loads. If the existing roof has wavy horizontal lines you can take out the waves by snapping a horizontal line 1 2 inch below the shingle bottoms of one course. Step 8 cut and install shingles.

Install roof shingles according to manufacturer recommendations shingle hints. Be sure to like and subscribe in order to help me bring you more helpful videos. If using asphalt or fiberglass shingles postpone shingle installation as long as possible. For best appearance use heavier weight shingles or laminated or textured.

So many roofing issues crop up because of gutter clogs and backlog. Roof sheathing attaches to the surface of the rafters or trusses to form the structural skin of the roof. You can extend your asphalt shingle roof s lifespan if you can keep it in good condition and quickly handle any issues it develops. How to install a roof over an existing roof.

This will provide time for roof sheathing to adjust to humidity and moisture conditions.