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.
Installing metal roof over shingles.
Install the metal edging.
Installing metal roofing over shingles is the best solution.
You will need to lay some 1 by 4 inch pine boards lengthwise every two feet on your roof.
When choosing to install a metal roof homeowners need to take into account several trade offs involving cost and performance.
How to install a metal roof over shingles hunker.
In terms of performance many homeowners choose a steel roof making it the most popular option when it comes to creating a metal roof over existing shingles.
How to install a metal roof over shingles with proper tools steel roofs can be noisy and unattractive in residential settings.
In a standing seam roof long single panels run vertically all the way from the eave to the ridge.
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.
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.
However if the steel roof is installed over an existing asphalt roof noise shouldn t be a problem.
Installing the metal roofing over 1x4 s allows the ability to also install additional insulation under the metal roof.
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.