Reroof Roof Over Wet Shingles

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.

Reroof roof over wet shingles.

Having said that it will be nearly impossible to get a good looking quality installation. 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. How to re roof under air conditioning units which are on top of roof. The nrca national roofing contractors and manufacturers association roofing manuals construction specifications institute standard federal construction standards from various agencies and internationresidential building code used by most states all prohibit placing either the water barrier membrane or shingles over wet substrate.

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. In this video we provide details on how to install roof shingles over existing shingles. Has the same manufacturer s warranty. Some roofers install a layer of waterproof shingle underlayment wsu over the existing shingles at the eave end as would be done for a roof laid on bare sheathing.

This provides added protection against ice dams. On 2018 05 09 by christie. The quick answer is yes you can re roof architectural shingles over existing architectural shingles however you must check with the shingle manufacturer as well. Looks just as good and lasts as long.

All shingle manufacturers honor the warranty whether their products are used for a reroof or a new roof. Can reroofing be done over wet shingles. On 2018 11 29 by diane. Because there is no tear off reroofing can go much faster and be much less expensive than a complete roof replacement.

That s also why building codes commonly limit re roofing to no more than two layers. Reroofing is the process of layering one set of new shingles over a set of existing shingles. Not if you re following the manufacturer s installation recommendations. It can only be done once so if you already have two layers of roofing in place reroofing is not an option for you.