Putting New Metal Roof Over Old Metal Roof

The installation of metal roofing is often easier and faster than other roof types and because of its simple design and generally large size can actually be installed directly on top of existing roofing materials like asphalt shingles and foam roofing.

Putting new metal roof over old metal roof.

The roof hugger metal roof overlay system is sub purling usually made from 16 gauge steel in 10 12 ft lengths. Metal over metal retrofit considerations there are a number of issues a roofer will have to deal with when it comes to metal over metal retrofits but listed below are a few where the use of a roof hugger. The warranty on your new metal roof at least from my company will not be impacted at all by going over the old shingles. Should you tear off the old roof and start over or simply remove the fasteners from the existing roof and install another roof over it.

In over 30 years and tens of thousands of installations over old shingles i have yet to go back on a job later and find myself saying hmm maybe the old shingles should have been removed. Insulation may be used over the roof hugger to add insulation to a building but the cavity can also be left open. If you want to install steel over asphalt your best choice for installing metal roofing is to use a steel shingle system like the one shown instead of the more common and more expensive standing seam steel. But now that i said that i would tell you that if it was my house i probably would and the reason is i don t want to have all those old shingles under the 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. In a standing seam roof long single panels run vertically all the way from the eave to the ridge. They are notched to fit over top of your existing metal roofing profile and are installed directly on the existing purling. Well that s why the metal roof is such like an eco friendly product because you don t have to get rid of all of that stuff to the landfills.