How To Install Metal Roofing Over Asphalt Shingles

Most metal shingles will be attached to the roof using metal shingle clips but metal roofing shingle installation can be system specific.

How to install metal roofing over asphalt shingles.

Otherwise you will need to remove the shingles. Installation of metal roofing over shingles. Venting the eaves to vent the roof holes are cut in the old roof above the soffit which pulls air through the soffit vents underneath. If you choose to install metal roofing over shingles there are certain things you must keep in mind.

Address any existing roof leaks and replace rotten rafters or. On this forum from angie s list this person has a strong opinion in favor of metal over asphalt shingles. If you want to install steel over asphalt your best choice for installing metal roofing is to use a steel shingle system like the one shown instead of the more common and more expensive standing seam steel. Consult the guide for your shingle brand to determine the specific method of installation required to preserve the warranty.

In a standing seam roof long single panels run vertically all the way from the eave to the ridge. This is what it looks like when you install a steel shingle roof system over an existing asphalt shingle roof. As long as the plywood under the shingle roof is in good condition this way can provide many benefits. But first here are a few precautions about the underlying material.

We get asked this question all the time. A metal roof is an alternative to a shingle covered roof but a metal roof can actually be installed over shingles. We re going to break them down so you know what to look out for. There is absolutely no reason to remove a structurally sound asphalt roof to install a metal roof other than to add to cost.

This is by far the most common way to install a metal roof. If you want to install steel over asphalt your best choice for installing metal roofing is to use a steel shingle system like the one shown instead of the more common and more expensive standing seam steel. 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. Tens of thousands of metal roofs have been done this way with no problems.

However you should only install a metal roof over shingles if you have less than four layers of shingles on the roof.