Installing Metal Roofing Over Asphalt Shingles

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.

Installing metal roofing over asphalt shingles.

In contrast steel shingles are small panels installed in horizontal rows much like other shingles. 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. After all you ll be making a significant and long term investment. This is what it looks like when you install a steel shingle roof system over an existing asphalt shingle roof.

If you choose to install metal roofing over shingles there are certain things you must keep in mind. If you are trying to decide between the two materials it s important to carefully look at the metal over shingle roof problems. How to install metal roofing over shingles. Doesn t provide the flattest surface for the metal roofing to be installed over each course of shingles is about a 1 8 higher than the course just below it.

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. Fiberglass core or matting an asphalt coating and a ceramic or stone granule surface give this material its durability. Things to know about metal over shingle roof problems. Does it work to leave asphalt shingles under long metal panels.

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. But first here are a few precautions about the underlying material. Address any existing roof leaks and replace rotten rafters or. This is what it looks like when you install a steel shingle roof system over an existing asphalt shingle roof.

However you should only install a metal roof over shingles if you have less than four layers of shingles on the roof. They are available in a variety of colors and textures are low cost and provide a traditional aesthetic. Otherwise you will need to remove the shingles. See the full post here.

It depends on the situation. 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.

Both metal and shingle roofs are great options for your next roofing project. 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.