Metal Roof Installation Over Shingles

This is what it looks like when you install a steel shingle roof system over an existing asphalt shingle roof.

Metal roof installation over shingles.

Otherwise you will need to remove the shingles. A metal roof is an alternative to a shingle covered roof but a metal roof can actually be installed over shingles. The second way to install a metal roof over a shingle roof is with the use of purlins or battens. Then cover the entire roof with a layer of insulation and secure it with a staple gun.

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. If you choose to install metal roofing over shingles there are certain things you must keep in mind. However you should only install a metal roof over shingles if you have less than four layers of shingles on the roof. Most metal shingles will be attached to the roof using metal shingle clips but metal roofing shingle installation can be system specific.

Consult the guide for your shingle brand to determine the specific method of installation required to preserve the warranty. Installing metal roofing over shingles is the best solution. Anatomy of a steel roof. Over time if there wasn t a buffer in between the shingle granules would wear away at the back of the metal roofing panels.

We re going to break them down so you know what to look out for. Codes vary so call your local building department to know how to install metal roofing over shingles properly code wise. What s involved in how to install metal roofing. In terms of performance many homeowners choose a steel roof making it the most popular option when it comes to creating a metal roof over existing shingles.

We get asked this question all the time. The purlins are screwed or nailed down to the roof deck depending on how the metal roofing manufacturer has testing for. As long as the plywood under the shingle roof is in good condition this way can provide many benefits. Next use 1 inch nails to secure some metal edging to the perimeter of the roof.

Address any existing roof leaks and replace rotten rafters or. But first here are a few precautions about the underlying material. Installation of metal roofing over shingles. Before you install metal roofing repair any damage to the wood under the shingles.

This is by far the most common way to install a metal roof. The metal used for the roof can be tin copper aluminum or steel.