Some consideration for vent stacks and chimneys is required during the design process.
Install steel roofing over asphalt shingles.
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.
Yes you can install a new metal roof over the top of an existing asphalt shingle roof provided there are not too many layers.
Install the metal edging.
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.
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.
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.
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 steel roofing over existing roofing materials is fairly simple.
In a standing seam roof long single panels run vertically all the way from the eave to the ridge.
Installing the metal roofing over 1x4 s allows the ability to also install additional insulation under the metal roof.
Install your metal edging around the perimeter of your roof.
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.
Use furring strips to build a slat board on the roof then mount the steel sheets to the slat board.
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 a steel roof will cost approximately 60 per square foot.
Yes you can install a metal roof over shingles.