Proper Way To Install Metal Roofing Over Shingles

As long as the plywood under the shingle roof is in good condition this way can provide many benefits.

Proper way to install metal roofing over shingles.

The purlins are screwed or nailed down to the roof deck depending on how the metal roofing manufacturer has testing for. 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. 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. Over time if there wasn t a buffer in between the shingle granules would wear away at the back of the metal roofing panels.

This is by far the most common way to install a metal roof. Next use 1 inch nails to secure some metal edging to the perimeter of the roof. Yes you can install a metal roof over shingles. The second way to install a metal roof over a shingle roof is with the use of purlins or battens.

This is what it looks like when you install a steel shingle roof system over an existing asphalt shingle roof. However you ll want to check with your local building department before you make any decisions. 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. This is what it looks like when you install a steel shingle roof system over an existing asphalt shingle roof.

Installing steel roofing over existing roofing materials is fairly simple. 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. But metal roofing shingle installation can be system specific. Then cover the entire roof with a layer of insulation and secure it with a staple gun.

Steel roofing offers many benefits over slate tiles or asphalt shingles metal roofing is resistant to fire rot and termites manufacturers provide 30 year warranties on metal roofing products.