Install New Roof Shingles Over Old

Installing a new roof over shingles takes less time than tearing off the old roof.

Install new roof shingles over old.

Finally i had time to put the video clips together. This provides added protection against ice dams. Please click show more below to know. The felt should be secured every six inches with nails or staples.

That s also why building codes commonly limit re roofing to no more than two layers. Leave the old valley flashing in place and install new over it. Four years after installing my new shingles they re still nice. Asphalt shingles can be laid over cedar shakes or shingles however this is a roofing project best left to pros.

Before you reshingle a roof read our step. As long as it s done right and under the right conditions installing new shingles over old ones can last as long and look just as good as a complete re roof. Layering shingles on top of one another also means you re not getting a good idea of what s going on underneath the top layer of your roof. Does it make sense to install new shingles over old ones.

Although it is often necessary to remove old shingles it s great when you can avoid the added expense of a tear off. In the right situation putting new shingles over old ones saves money and helps the environment. Install a layer of roofing felt over the roof before you begin installing the new shingles. Manufacturers will still warranty the roof for the same amount of time as a re roof as long as it s done by a qualified installer.

The roof also consists of decking and underlayment. Can you put new asphalt roof shingles right over old ones. If the old ones are flat and you fill in any missing tabs and you do no more that a total of two layers of shingles yes you can reshingle over old shingles. Step 3 cover the old shingles.

Beveled wood pieces called horsefeathers must be laid along the thick edges of the shakes to make a fairly flat surface. Along the rakes install a new j channel drip edge which wraps around the old rake flashing and starter courses. A reliable roofer will always do a roof inspection. Looks just as good and lasts as long.

Installing new roof shingles over old effectively doubles the weight of the roofing so you have to make sure your roof structure can handle the extra load. Has the same manufacturer s warranty. If you install new roof shingles over old ones your roof might sag and lose integrity over time. Damaged shingles should be removed to check the decking for problems.