Steel Roof Panels Over Shingles

Use furring strips to build a slat board on the roof then mount the steel sheets to the slat board.

Steel roof panels over shingles.

Asphalt roofs typically last 20 to 30 years depending on the installation and shingle quality. There are really two ways to install a metal roof over a shingle roof. Install the roofing screws vertically along each rib in the panel. This provides a couple of benefits.

Installing steel roofing over existing roofing materials is fairly simple. By jamie lisse a metal roof is an alternative to a shingle covered roof but a metal roof can actually be installed over shingles. Metal roof over shingles condensation metal roofs must be laid flat on a vapor barrier because steel will condensate if there s any air space underneath it. This is what it looks like when you install a steel shingle roof system over an existing asphalt shingle roof.

Place the first screw. However you should only install a metal roof over shingles if you have less than four layers of shingles on the roof. Installing a steel roof will cost approximately 60 per square foot. 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.

Put the steel down directly on a vapor barrier. Some consideration for vent stacks and chimneys is required during the design process. It doesn t matter if the air space is a half inch or six inches because the condensation factor will remain the same. Our metal roofing profiles.

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. Otherwise you will need to remove the shingles. Be sure the larger edge is laid so that the small edge of the next panel will overlap it. A steel roof is a lifetime investment lasting 50 years or more if it s a good one.

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.