What s involved in how to install metal roofing.
How to install metal roofing on shingles.
Codes vary so call your local building department to know how to install metal roofing over shingles properly code wise.
If you don t know how to cut metal roofing panels you can warp them or damage the protective coating that prevents rust.
Install the roofing screws vertically along each rib in the panel.
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.
Be sure the larger edge is laid so that the small edge of the next panel will overlap it.
This is what it looks like when you install a steel shingle roof system over an existing asphalt shingle roof.
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.
Experts recommend that you work diagonally and raising each row of shingles gradually.
It doesn t matter if the air space is a half inch or six inches because the condensation factor will remain the same.
In a standing seam roof long single panels run vertically all the way from the eave to the ridge.
You will also need to invest in some specialty tools to help you get the job done.
Anatomy of a steel roof.
Metal roofing is much more difficult to install than asphalt shingles.
Metal roof over shingles condensation.