Proper Way To Install Metal Roofing Over Shingles

Before you install metal roofing repair any damage to the wood under the shingles.

Proper way to install metal roofing over shingles.

Use proper fall protection equipment and be certain the system is anchored to your roof studs correctly. Metal roofing is a unique trend in roofing and this guide will walk you through the steps including how to install metal roofing over shingles. However you ll want to check with your local building department before you make any decisions. Installing steel roofing over existing roofing materials is fairly simple.

This is what it looks like when you install a steel shingle roof system over an existing asphalt shingle roof. Building officials in some areas will only allow a re roof over one layer of shingles while officials in other places may allow you to place the roof over two layers of shingles. Next use 1 inch nails to secure some metal edging to the perimeter of the roof. This is what it looks like when you install a steel shingle roof system over an existing asphalt shingle roof.

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. Then cover the entire roof with a layer of insulation and secure it with a staple gun. Yes you can install a metal roof over shingles.

This is by far the most common way to install a metal roof. The second way to install a metal roof over a shingle roof is with the use of purlins or battens. 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. 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.

Over time if there wasn t a buffer in between the shingle granules would wear away at the back of the metal roofing panels.