Reroof Roof Over Wet Shingles

This moisture can lead to mold and mildew forming underneath the shingles.

Reroof roof over wet shingles.

Remove the ridge caps. One question you might have is can i reroof over existing shingles the answer is it depends state regulations and the condition of your roof both play a role in determining if you need a roof replacement tear off vs cover over. Roofing felt applied over a wet roof deck or shingles applied over wet roofing felt traps a layer of moisture within the roof. This shortens the effective life of the shingles and can adversely affect the roof sheathing.

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. Inspect the condition of the existing roof and roof deck for numer of roof layers soundness of roof decking smoothness of existing roof installation and other factors that determine whether or not you can do a roof over or if a roof shingle tear off is required. Roof replacement is expensive.

Your existing layer of roof shingles is deteriorating and you need to get a new roof installed. If a shingle is. Use a flat pry bar. How to do it remove caps.

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. Installing a new roof over shingles takes less time than tearing off the old roof. 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 top coat is a layer of igneous rock granules wrapped in a ceramic pigment coating that protects the asphalt from uv rays.

Having said that it will be nearly impossible to get a good looking quality installation. 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. Has the same manufacturer s warranty. All shingle manufacturers honor the warranty whether their products are used for a reroof or a new roof.

Nearly all shingles start as a fiberglass mat soaked with water resistant asphalt. Prep work for re roofing over asphalt shingles.