This method has its benefits as well.
Steel roofing installation over shingles.
Installing metal roofing over shingles is the best solution.
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.
You want to be sure that the roof and shingles are in suitable shape for the project.
Make sure roof is square.
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.
The purlins are screwed or nailed down to the roof deck depending on how the metal roofing manufacturer has testing for their roofing panels and then the metal is installed to the purlins.
In this video i m installing some metal roofing over an existing ash fault shingled roof.
However it is best to consult with a professional as to your situation.
This is by far the most common way to install a metal roof.
Be sure the larger edge is laid so that the small edge of the next panel will overlap it.
5install metal panels or shingles.
3 install 1x4 purlins down over the shingles before installing the metal roof the third way to install a metal roof over shingles is by applying 1x4 purlins over the shingle roof.
Another added benefit is that the layers of your old roof will further insulate your home.
Align the first metal roofing panel so that it overlaps the edging by 1 2 to 3 4 of an inch and is square to the roof line.
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.
The second way to install a metal roof over a shingle roof is with the use of purlins or battens.
Install the roofing screws vertically along each rib in the panel.
You can usually install metal roofing over shingles because most types are lightweight thin and pliable.
This is not a complete install only basic install on a bungalow i.
However you should only install a metal roof over shingles if you have less than four layers of shingles on the roof.
A metal roof is an alternative to a shingle covered roof but a metal roof can actually be installed over shingles.
However you ll want to check with your local building department before you make any decisions.
As long as the plywood under the shingle roof is in good condition this way can provide many benefits.