How To Install Metal Roofing On Shingles

This is what it looks like when you install a steel shingle roof system over an existing asphalt shingle roof.

How to install metal roofing on shingles.

Install metal panels or shingles align the first metal roofing panel so that it overlaps the edging by 1 2 to 3 4 of an inch and is square to the roof line. It doesn t matter if the air space is a half inch or six inches because the condensation factor will remain the same. Be sure the larger edge is laid so that the small edge of the next panel will overlap it. Metal roof over shingles condensation.

You will also need to invest in some specialty tools to help you get the job done. 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. In a standing seam roof long single panels run vertically all the way from the eave to the ridge. You should start your metal shingles installation with half a shingle or in accordance with your metal shingles installation manual which should be system specific starting from the left of the starter flashing or gable.

What s involved in how to install metal roofing. Experts recommend that you work diagonally and raising each row of shingles gradually. Put the steel down directly on a vapor barrier. If you don t know how to cut metal roofing panels you can warp them or damage the protective coating that prevents rust.

Codes vary so call your local building department to know how to install metal roofing over shingles properly code wise. Metal roofing is much more difficult to install than asphalt shingles.