Steel Roof Panels Over Shingles

Otherwise you will need to remove the shingles.

Steel roof panels over shingles.

This is what it looks like when you install a steel shingle roof system over an existing asphalt shingle roof. By jamie lisse a metal roof is an alternative to a shingle covered roof but a metal roof can actually be installed over shingles. A benefit to doing it this way is that you can see if there is any rotten plywood that needs to be replaced before installing the new roof. Be sure the larger edge is laid so that the small edge of the next panel will overlap it.

It doesn t matter if the air space is a half inch or six inches because the condensation factor will remain the same. The first way is to run new underlayment over the existing shingle roof completely covering the old roof. Use furring strips to build a slat board on the roof then mount the steel sheets to the slat board. Align the first metal roofing panel so that it overlaps the edging by 1 2 to 3 4 of an inch and is square to the roof.

There are really two ways to install a metal roof over a shingle roof. 1 remove the shingles before installing the metal roof the first way to install a metal roof over shingles is by completely removing the old shingles before installing the new metal roof. Put the steel down directly on a vapor barrier. Install the roofing screws vertically along each rib in the panel.

Place the first screw. Some consideration for vent stacks and chimneys is required during the design process. Asphalt roofs typically last 20 to 30 years depending on the installation and shingle quality. This provides a couple of benefits.

Our metal roofing profiles. So when we talk about metal roofing over shingles how does it work. The first one being that the new underlayment will act as a second line of defense in case water would to somehow get underneath the metal roof. However you should only install a metal roof over shingles if you have less than four layers of shingles on the roof.

A steel roof is a lifetime investment lasting 50 years or more if it s a good one.