Installing Metal Roofing Over Asphalt Shingles

But first here are a few precautions about the underlying material.

Installing metal roofing over asphalt shingles.

See the full post here. The industry standard for underlayment is often thought of as felt paper tar paper but there are also many newer synthetic underlayments that are designed. This is what it looks like when you install a steel shingle roof system over an existing asphalt shingle roof. A metal roof is an alternative to a shingle covered roof but a metal roof can actually be installed over shingles.

Things to know about metal over shingle roof problems. Address any existing roof leaks and replace rotten rafters or. How to install metal roofing over shingles. Does it work to leave asphalt shingles under long metal panels.

3 install 1x4 purlins down over the shingles before installing the metal roof the third way to install a metal roof over shingles is by applying 1x4 purlins over the shingle roof. Both metal and shingle roofs are great options for your next roofing project. If you are trying to decide between the two materials it s important to carefully look at the metal over shingle roof problems. This is what it looks like when you install a steel shingle roof system over an existing asphalt shingle roof.

We re going to break them down so you know what to look out for. It depends on the situation. However you should only install a metal roof over shingles if you have less than four layers of shingles on the roof. If you choose to install metal roofing over shingles there are certain things you must keep in mind.

In contrast steel shingles are small panels installed in horizontal rows much like other shingles. A layer of underlayment installed on top of the existing shingles will help keep the granules of the old shingles from rubbing against the back of the metal and causing possible corrosion. If you want to install steel over asphalt your best choice for installing metal roofing is to use a steel shingle system like the one shown instead of the more common and more expensive standing seam steel. In a standing seam roof long single panels run vertically all the way from the eave to the ridge.

After all you ll be making a significant and long term investment. Fiberglass core or matting an asphalt coating and a ceramic or stone granule surface give this material its durability. Venting the eaves to vent the roof holes are cut in the old roof above the soffit which pulls air through the soffit vents underneath. Venting the eaves to vent the roof holes are cut in the old roof above the soffit which pulls air through the soffit vents underneath.

Installation of metal roofing over shingles. Asphalt shingles are the most popular roofing material.