Shingling A Roof Over Old Shingles

No missing shingles no gaps no holes in the roof no soft spots because of water damage.

Shingling a roof over old shingles. Remove the ridge caps. That s also why building codes commonly limit re roofing to no more than two layers. All shingle manufacturers honor the warranty whether their products are used for a reroof or a new roof. Remove air vents and pipe flashings by prying out or unscrewing the fasteners holding the fixture.

Because asphalt shingles are routinely exposed 5 in rip down the first strip the starter course so that it is 5 in. 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. Looks just as good and lasts as long. 1st and foremost your existing roof needs to be in reasonable shape.

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. How to do it remove caps. If a shingle is.

Use 1 5 or 1 75 inch roofing nails. Rather than ripping off your old roof and putting a new one down you simply add a layer of shingles to your existing roof. Shingle a roof over existing shingles save 75 give or take. If conditions are right new shingles laid over old shingles can be just as attractive and durable as shingles laid on bare sheathing.

Overlaying your existing roof also comes with its own set of pros and cons. 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. To shingle on top of existing shingles there are a few things you want to make sure.

See below for a shopping list tools and steps subscr. Ask this old house general contractor tom silva reveals the best ways to secure shingles to a roof. Whether it is the right choice for you depends on your home and the condition of your roof. Doing it now will make it easier to keep the reroofing job clean.

Use a flat pry bar. Leave the old valley flashing in place and install new over it. Place the top of each starter shingle firmly against the bottom of the shingle immediately above it and even with the eaves then nail it into place. How to roof over existing shingles.

This involves less labor dropping.