Metal Roof Installation Over Shingles

In terms of performance many homeowners choose a steel roof making it the most popular option when it comes to creating a metal roof over existing shingles.

Metal roof installation over shingles.

If you choose to install metal roofing over shingles there are certain things you must keep in mind. A metal roof is an alternative to a shingle covered roof but a metal roof can actually be installed over shingles. Over time if there wasn t a buffer in between the shingle granules would wear away at the back of the metal roofing panels. The second way to install a metal roof over a shingle roof is with the use of purlins or battens.

Installation of metal roofing over shingles. Anatomy of a steel roof. Otherwise you will need to remove the shingles. The metal used for the roof can be tin copper aluminum or steel.

As long as the plywood under the shingle roof is in good condition this way can provide many benefits. What s involved in how to install metal roofing. 3 install 1 4 purlins down over the shingles before installing the metal roof the third way to install a metal roof over shingles is by applying 1 4 purlins over the shingle roof. We re going to break them down so you know what to look out for.

Then cover the entire roof with a layer of insulation and secure it with a staple gun. This is by far the most common way to install a metal roof. Codes vary so call your local building department to know how to install metal roofing over shingles properly code wise. The purlins are screwed or nailed down to the roof deck depending on how the metal roofing manufacturer has testing for.

However you should only install a metal roof over shingles if you have less than four layers of shingles on the roof. Yes you can and by doing so you save in the labor and hassle of tearing off the old roof and you won t be contributing to filling our landfills. This is what it looks like when you install a steel shingle roof system over an existing asphalt shingle roof. But first here are a few precautions about the underlying material.

Make sure roof is square. Most metal shingles will be attached to the roof using metal shingle clips but metal roofing shingle installation can be system specific. Installing metal roofing over shingles is the best solution. Consult the guide for your shingle brand to determine the specific method of installation required to preserve the warranty.

We get asked this question all the time. Address any existing roof leaks and replace rotten rafters or.