Installing Metal Roofing Over Asphalt Shingles

This is what it looks like when you install a steel shingle roof system over an existing asphalt shingle roof.

Installing metal roofing over asphalt shingles.

If you are trying to decide between the two materials it s important to carefully look at the metal over shingle roof problems. After all you ll be making a significant and long term investment. 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.

See the full post here. Address any existing roof leaks and replace rotten rafters or. It depends on the situation. In contrast steel shingles are small panels installed in horizontal rows much like other shingles.

We re going to break them down so you know what to look out for. Otherwise you will need to remove the shingles. Both metal and shingle roofs are great options for your next roofing project. If you choose to install metal roofing over shingles there are certain things you must keep in mind.

But first here are a few precautions about the underlying material. 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. 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. Asphalt shingles are the most popular roofing material.

How to install metal roofing over shingles. 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. 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.

A metal roof is an alternative to a shingle covered roof but a metal roof can actually be installed over 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. Installation of metal roofing over shingles. Fiberglass core or matting an asphalt coating and a ceramic or stone granule surface give this material its durability.

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. Does it work to leave asphalt shingles under long metal panels.