How To Shingle Roof Over Existing Shingles

Use a flat pry bar.

How to shingle roof over existing shingles.

Shingle a roof over existing shingles save 75 give or take. Mark the location of the top of the uncut shingle on the felt. 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. The uncut shingle should hang a quarter of an inch over the roof edge.

You need to tear off the roof and install a new one. Remove air vents and pipe flashings by prying out or unscrewing the fasteners holding the fixture. Remove the ridge caps. A single length of drip edge wraps roof corners with the rake flashing overlapping the eaves for good drainage bottom.

To shingle on top of existing shingles there are a few things you want to make sure. Use 1 5 or 1 75 inch roofing nails. If a shingle is. Depending on the type of job the author uses several specialty drip edge profiles including one with an extra long leg designed to cover existing shingles and drip edge at right in top photo.

A steel roof is a lifetime investment lasting 50 years or more if it s a good one. So if there are already two layers the choice is made for you. How to do it remove caps. How to shingle over existing shingles and how to shingle a roof how to install roof shingles shingle layout lines h.

Use the chalk line to mark the line at that spot across the roof. Doing it now will make it easier to keep the reroofing job clean. No missing shingles no gaps no holes in the roof no soft spots because of water damage. Roofing second layer of shingles roofing.

Position one of the uncut shingles on top of a trimmed shingle. Asphalt roofs typically last 20 to 30 years depending on the installation and shingle quality.