Roofing Over Old Wet Shingles

Doing it now will make it easier to keep the reroofing job clean.

Roofing over old wet shingles.

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. If you re considering getting a metal roof you may be wondering if you can install it over shingles. Is it okay to put the new shingles right over the old ones. On 2018 05 09 by christie.

When roofing over your existing shingles can be a good idea. A wet installation can also cause a new roof to fail. Why installing new shingles over old shingles can be good. If the sheathing or wood is wet during the time of installation it can trap moisture inside of your roof leading to mold rot or other severe problems.

Shingles and roofing materials may not adhere properly to slick surfaces with high humidity. On 2018 11 30 03 51 02 809154 by mod reroofing over wet shingles. Can you have 1 layer of asphalt shingles on one side and 2 layers of shingles on the other side. Leak around a dormer which the homeowner never knew about long term effects of shingling over shingles.

We re going to answer that question in this blog so keep reading or give our legacy service team a call at 215 798 9790. Not if you re following the manufacturer s installation recommendations. All shingle manufacturers honor the warranty whether their products are used for a reroof or a new roof. That s also why building codes commonly limit re roofing to no more than two layers.

Let s start with the good. This can lead to increased rot mold and decrease the structural integrity of your home. 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. Can metal roofs be installed over shingles.

If you need to redo your roof you might be tempted to save some money by having another layer installed over the existing shingles. Remove the ridge caps. How to do it remove caps. If a shingle is.

The problem with this is that as the metal heats up and expands or cools down and contracts it moves a little on the roof. On 2018 11 29 by diane. You can save money because there s no dump fee for removing your old roofing and there s no need for additional felt paper over the old roof. Many arizona homeowners with shingle roofs do decide to roof over their existing shingles because.

Some people think that they can just install the metal roofing right over the old shingles roof without any barrier in between but this is highly not recommended. In a shingle over if some of the decking has buckled and warped over the years it likely isn t going to be noticed and fixed. Use a flat pry bar. Remove air vents and pipe flashings by prying out or unscrewing the fasteners holding the fixture.