How To Install Roll Roofing Over Shingles

Roll roofing is often installed over bare wood sheathing or sheathing that has been painted with a primer.

How to install roll roofing over shingles.

If the job is done correctly with the new layer of shingles laid flat over the existing shingles the old roof cushions the new one and serves as a secondary barrier should wind or water ever break through the new shingles. Applying roofing felt first will better protect the sheathing against condensation as well as against leaking. If you install roll roofing using the double coverage method it will last longer. It is easier and quicker to manufacture than shingles since it is a single piece and as a result it is a good deal cheaper.

Roll roofing is a good choice for covering an existing roof. Beveled wood pieces called horsefeathers must be laid along the thick edges of the shakes to make a fairly flat surface. Roll roofing is made from the same asphalt composition material as shingles and it s easier to install. Asphalt shingles can be laid over cedar shakes or shingles however this is a roofing project best left to pros.

Roll roofing is asphalt based like most shingles. A champaign roofing company can install it for a reasonable price if the homeowner does not wish to do it. Installing roll roofing is always an appealing option for homeowners because it is easy to install and much less expensive than other roofing. Installing a new roof over an existing one also called a layover or nailover is often possible although not always the best option.

It has a life expectancy of anywhere from six to 10 years but it s fairly inexpensive. Roll roofing is a lightweight roofing material that s sold in a large roll. Before you reshingle a roof read our step by step guide for adding new shingles over old ones. There are three systems including glue down torch down and peel and stick.

However roll roofing does not look nearly as good as shingle or tile so it is typically only used on roofs that are not readily visible. Roll roofing generally is sold in a sheet 36 inches long and 60.