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.
Installing steel roof over shingles.
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.
Make sure roof is square.
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.
Make a slat board base on top of the shingles.
Another added benefit is that the layers of your old roof will further insulate your home.
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.
You will need to lay some 1 by 4 inch pine boards lengthwise every two feet on your roof.
In a standing seam roof long single panels run vertically all the way from the eave to the ridge.
Yes you can install a metal roof over shingles.
How to install a metal roof over shingles hunker.
If you want to install steel over asphalt your best choice is to use a steel shingle system like the one shown instead of the more common and more expensive standing seam steel.
Install the metal edging.
Install your metal edging around the perimeter of your roof.
In a standing seam roof long single panels run vertically all the way from the eave to the ridge.
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.