You will need to lay some 1 by 4 inch pine boards lengthwise every two feet on your roof.
Installing metal roof over shingles.
In terms of building codes many municipalities now have placed limits.
However you ll want to check with your local building department before you make any decisions.
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.
Can i install a new metal roof over shingles.
They have always been popular on barns commercial buildings and.
Yes you can install a metal roof over shingles.
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.
Install your metal edging around the perimeter of your 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.
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.
Make a slat board base on top of the shingles.
Installing the metal roofing over 1x4 s allows the ability to also install additional insulation under the metal roof.
Another added benefit is that the layers of your old roof will further insulate your home.
Install the metal edging.