How To Shingle Roof Over Existing Shingles

A steel roof is a lifetime investment lasting 50 years or more if it s a good one.

How to shingle roof over existing shingles.

1st and foremost your existing roof needs to be in reasonable shape. Position one of the uncut shingles on top of a trimmed shingle. Shingle a roof over existing shingles save 75 give or take. There are already two layers of shingles on your roof most building codes only allow two layers of any type of roofing on your home.

You need to tear off the roof and install a new one. Mark the location of the top of the uncut shingle on the felt. This is what it looks like when you install a steel shingle roof system over an existing asphalt shingle roof. How to shingle over existing shingles and how to shingle a roof how to install roof shingles shingle layout lines h.

Asphalt roofs typically last 20 to 30 years depending on the installation and shingle quality. The uncut shingle should hang a quarter of an inch over the roof edge. Use 1 5 or 1 75 inch roofing nails. Remove air vents and pipe flashings by prying out or unscrewing the fasteners holding the fixture.

Roofing second layer of shingles roofing. How to do it remove caps. Remove the ridge caps. Doing it now will make it easier to keep the reroofing job clean.

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. To shingle on top of existing shingles there are a few things you want to make sure. Use a flat pry bar. If a shingle is.

No missing shingles no gaps no holes in the roof no soft spots because of water damage. So if there are already two layers the choice is made for you.