How To Install Metal Roofing Over Shingles

Before you install metal roofing repair any damage to the wood under the shingles.

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. A metal roof is an alternative to a shingle covered roof but a metal roof can actually be installed over shingles. Yes you can install a metal roof 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.

What s involved in how to install metal roofing. Codes vary so call your local building department to know how to install metal roofing over shingles properly code wise. We get asked this question all the time. Next use 1 inch nails to secure some metal edging to the perimeter of the roof.

Make sure roof is square. Consult the guide for your shingle brand to determine the specific method of installation required to preserve the warranty. This is what it looks like when you install a steel shingle roof system over an existing asphalt shingle roof. Can i install a new metal roof over shingles.

As long as the plywood under the shingle roof is in good condition this way can provide many benefits. My answer often surprises people. This is by far the most common way to install a metal roof. Otherwise you will need to remove the 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. Most metal shingles will be attached to the roof using metal shingle clips but metal roofing shingle installation can be system specific. 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. However it is based upon experience with tens of thousands of installations over many years.

However you ll want to check with your local building department before you make any decisions.