Roofing Over Existing Shingle

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.

Roofing over existing shingle.

Metal roofs over shingles will also provide an extra layer covering your home helping to further insulate it. 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. Let s start with the good. By placing metal roofing over shingles you can save in the labor costs of ripping them off while also preventing them from being thrown into landfills.

Installing a new roof over an existing one also called a layover or nailover is often possible although not always the best option. Remove the ridge caps. Advantages of metal roofs over shingles. In fact the only pro to a shingle over is it s cheaper and cleaner.

No missing shingles no gaps no holes in the roof no soft spots because of water damage. Doing it now will make it easier to keep the reroofing job clean. When contemplating a new roof many people hope to simply do a shingle over and avoid the extra cost and mess of tearing off the existing roof and starting from scratch. If a shingle is.

A properly installed layover roof can look and function as well. 1st and foremost your existing roof needs to be in reasonable shape. When roofing over your existing shingles can be a good idea. Disadvantages of metal roofs.

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. When you should tear off your roof and start from scratch instead. All shingle manufacturers honor the warranty whether their products are used for a reroof or a new roof. In this video i take show how to proper recover an old roof and make it look like it s a single layer check it out you might find useful tips for your new.

Many arizona homeowners with shingle roofs do decide to roof over their existing shingles because. That s also why building codes commonly limit re roofing to no more than two layers. To shingle on top of existing shingles there are a few things you want to make sure. Why installing new shingles over old shingles can be good.

If you try to upgrade your 3 tab shingle to a dimensional shingle when nailing over it causes an aesthetic issue. Use a flat pry bar. How to do it remove caps. Remove air vents and pipe flashings by prying out or unscrewing the fasteners holding the fixture.