How To Install Metal Roofing Over Shingles

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.

How to install metal roofing over shingles.

Then cover the entire roof with a layer of insulation and secure it with a staple gun. However you ll want to check with your local building department before you make any decisions. However you should only install a metal roof over shingles if you have less than four layers of shingles on the roof. Codes vary so call your local building department to know how to install metal roofing over shingles properly code wise.

Make sure roof is square. What s involved in how to install metal roofing. This is by far the most common way to install a metal roof. Next use 1 inch nails to secure some metal edging to the perimeter of the roof.

Yes you can install a metal roof over shingles. A metal roof is an alternative to a shingle covered roof but a metal roof can actually be installed over shingles. As long as the plywood under the shingle roof is in good condition this way can provide many benefits. Otherwise you will need to remove the shingles.

Before you install metal roofing repair any damage to the wood under the shingles. This is what it looks like when you install a steel shingle roof system over an existing asphalt shingle roof. I frequently am asked whether homeowners and contractors should remove roof shingles from a home s roof before a new metal roof is installed. Building officials in some areas will only allow a re roof over one layer of shingles while officials in other places may allow you to place the roof over two layers of shingles.

Most metal shingles will be attached to the roof using metal shingle clips but metal roofing shingle installation can be system specific. My answer often surprises people. 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.

Consult the guide for your shingle brand to determine the specific method of installation required to preserve the warranty.