How To Install Metal Roofing Over Shingles

Make sure roof is square.

How to install metal roofing over shingles.

We get asked this question all the time. Most metal shingles will be attached to the roof using metal shingle clips but metal roofing shingle installation can be system specific. I frequently am asked whether homeowners and contractors should remove roof shingles from a home s roof before a new metal roof is installed. Anatomy of a steel roof.

However you should only install a metal roof over shingles if you have less than four layers of shingles on the roof. What s involved in how to install metal roofing. As long as the plywood under the shingle roof is in good condition this way can provide many benefits. Codes vary so call your local building department to know how to install metal roofing over shingles properly code wise.

Otherwise you will need to remove the shingles. My answer often surprises people. However you ll want to check with your local building department before you make any decisions. This is what it looks like when you install a steel shingle roof system over an existing asphalt shingle roof.

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. Can i install a new metal roof over shingles. This is by far the most common way to install a metal roof. However it is based upon experience with tens of thousands of installations over many years.

Before you install metal roofing repair any damage to the wood under the 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. Yes you can install a metal roof over shingles.

Then cover the entire roof with a layer of insulation and secure it with a staple gun.