How To Install Metal Roofing Over Asphalt Shingles

Tens of thousands of metal roofs have been done this way with no problems.

How to install metal roofing over asphalt shingles.

Consult the guide for your shingle brand to determine the specific method of installation required to preserve the warranty. A metal roof is an alternative to a shingle covered roof but a metal roof can actually be installed over shingles. There is absolutely no reason to remove a structurally sound asphalt roof to install a metal roof other than to add to cost. Installation of metal roofing over shingles.

We get asked this question all the time. 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. If you choose to install metal roofing over shingles there are certain things you must keep in mind. 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.

This is by far the most common way to install a metal roof. Address any existing roof leaks and replace rotten rafters or. On this forum from angie s list this person has a strong opinion in favor of metal over asphalt shingles. This is what it looks like when you install a steel shingle roof system over an existing asphalt shingle roof.

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. But first here are a few precautions about the underlying material. Most metal shingles will be attached to the roof using metal shingle clips but metal roofing shingle installation can be system specific. We re going to break them down so you know what to look out for.

In a standing seam roof long single panels run vertically all the way from the eave to the ridge. 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. 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. However you should only install a metal roof over shingles if you have less than four layers of shingles on the roof.

Can i install a new metal roof over shingles.