How To Install Metal Roof Over Shingles

Metal roofing is also available in the form of shingles.

How to install metal roof over shingles.

What s involved in how to install metal roofing. It doesn t matter if the air space is a half inch or six inches because the condensation factor will remain the same. Install the metal trim. Cool outside air travels under the shingles to the vented ridge pulling out moisture and heat.

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. Lay the starter row of metal shingles at the drip edge and affix to the roof with metal roofing nails. Make sure roof is square. Codes vary so call your local building department to know how to install metal roofing over shingles properly code wise.

Anatomy of a steel roof. We get asked this question all the time. As long as the plywood under the shingle roof is in good condition this way can provide many benefits. Your metal trim will go along the roof s edges as well as the top ridge.

Work up from the initial row starting at the lower corner in a diagonal pattern staggering the shingles to prevent gaps. This is by far the most common way to install a metal roof. Put the steel down directly on a vapor barrier. Install with 1 4 inch metal wood screws at a distance of every two feet.

Can i install a new metal roof over shingles. Before you install metal roofing repair any damage to the wood under the shingles. A steel roof is a lifetime investment lasting 50 years or more if it s a good one. Then cover the entire roof with a layer of insulation and secure it with a staple gun.

Yes you can and by doing so you save in the labor and hassle of tearing off the old roof and you won t be contributing to filling our landfills. Next use 1 inch nails to secure some metal edging to the perimeter of the roof.