Reroof Roof Over Wet Shingles

Remove the ridge caps.

Reroof roof over wet shingles.

Use a flat pry bar. All shingle manufacturers honor the warranty whether their products are used for a reroof or a new roof. Prep work for re roofing over asphalt shingles. Roofing felt applied over a wet roof deck or shingles applied over wet roofing felt traps a layer of moisture within the roof.

If a shingle is. This moisture can lead to mold and mildew forming underneath the shingles. Has the same manufacturer s warranty. Installing a new roof over shingles takes less time than tearing off the old roof.

Having said that it will be nearly impossible to get a good looking quality installation. Looks just as good and lasts as long. Roof replacement is expensive. Your existing layer of roof shingles is deteriorating and you need to get a new roof installed.

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. Remove air vents and pipe flashings by prying out or unscrewing the fasteners holding the fixture. 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. 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.

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. This shortens the effective life of the shingles and can adversely affect the roof sheathing. The top coat is a layer of igneous rock granules wrapped in a ceramic pigment coating that protects the asphalt from uv rays. Doing it now will make it easier to keep the reroofing job clean.

How to do it remove caps. 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.