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.
Installing metal roof directly over shingles.
Make a slat board base on top of the shingles.
How to install a metal roof over shingles on a budget.
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.
Yes you can install a metal roof over shingles.
How to install a metal roof over shingles hunker.
In a standing seam roof long single panels run vertically all the way from the eave to the ridge.
It provides a solid flat surface to attach the new metal roof to it creates an air gap between the back of the metal and the shingle roof which allows for airflow.
Best setting for installing a metal roof over shingles on tight budget.
You will need to lay some 1 by 4 inch pine boards lengthwise every two feet on your roof.
Another added benefit is that the layers of your old roof will further insulate your home.
Can i install a new metal roof over shingles.
Install your metal edging around the perimeter of your roof.
Install over a framework of 2x2s.
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.
First because the frame is screwed directly to the rafters and the interlocked shingles are screwed to the frame the roof can withstand.
Install the metal edging.