How To Install Metal Roofing Over Shingles

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.

How to install metal roofing over shingles.

This is what it looks like when you install a steel shingle roof system over an existing asphalt shingle roof. Most metal shingles will be attached to the roof using metal shingle clips but metal roofing shingle installation can be system specific. Make sure roof is square. Anatomy of a steel roof.

A metal roof is an alternative to a shingle covered roof but a metal roof can actually be installed over shingles. However it is based upon experience with tens of thousands of installations over many years. Can i install a new metal roof over shingles. Consult the guide for your shingle brand to determine the specific method of installation required to preserve the warranty.

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. Before you install metal roofing repair any damage to the wood under the shingles. My answer often surprises people. We get asked this question all the time.

I frequently am asked whether homeowners and contractors should remove roof shingles from a home s roof before a new metal roof is installed. Codes vary so call your local building department to know how to install metal roofing over shingles properly code wise. However you should only install a metal roof over shingles if you have less than four layers of shingles on the roof. Next use 1 inch nails to secure some metal edging to the perimeter of the roof.

Then cover the entire roof with a layer of insulation and secure it with a staple gun. Otherwise you will need to remove the shingles. However you ll want to check with your local building department before you make any decisions. As long as the plywood under the shingle roof is in good condition this way can provide many benefits.

This is by far the most common way to install a metal roof.