Roll Roofing Over Existing Shingles

Doesn t provide the flattest surface for the metal roofing to be installed over each course of shingles is about a 1 8 higher than the course just below it.

Roll roofing over existing shingles.

Roll roofing generally is sold in a sheet 36 inches long and 60. It has a life expectancy of anywhere from six to 10 years but it s fairly inexpensive. Roll roofing is a good choice for covering an existing roof. All shingle manufacturers honor the warranty whether their products are used for a reroof or a new roof.

A champaign roofing company can install it for a reasonable price if the homeowner does not wish to do it. You don t need to get a professional in to apply rolled roofing to your house or shed you can do it yourself. 1 install a drip. Roll roofing is asphalt based like most shingles.

Although many metal roof systems can be applied over an existing roof layovers are more commonly done with asphalt shingles. Besides creating extra weight for your house to support installing rolled roofing over an existing roof reduces the lifetime of the new roof and existing leaks may reappear. 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. 3 install 1 4 purlins down over the shingles before installing the metal roof the third way to install a metal roof over shingles is by applying 1 4 purlins over the shingle roof.

Rolled roofing has become more and more popular in recent years. In this video i take show how to proper recover an old roof and make it look like it s a single layer check it out you might find useful tips for your new. Rolled roofing is very adaptable and can be cut into 12 inch by 36 inch strips to act as hips and ridges or 9 inch strips for eaves and rakes. Beveled wood pieces called horsefeathers must be laid along the thick edges of the shakes to make a fairly flat surface.

Choose a shingle style with the same dimensions as those on your. It can be installed simply and requires only nails and roofing cement. If removing your current shingles is a problem it is usually permissible to re roof over your existing roof with rolled roofing. Asphalt shingles can be laid over cedar shakes or shingles however this is a roofing project best left to pros.

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.