This is by far the most common way to install a metal roof.
How to steel roof over shingles.
Install the metal edging.
Installing metal roofing over shingles is the best solution.
I frequently am asked whether homeowners and contractors should remove roof shingles from a home s roof before a new metal roof is installed.
Use 1 1 4 inch.
Metal roof over shingles condensation metal roofs must be laid flat on a vapor barrier because steel will condensate if there s any air space underneath it.
In a standing seam roof long single panels run vertically all the way from the eave to the ridge.
As long as the plywood under the shingle roof is in good condition this way can provide many benefits.
My answer often surprises people.
The metal used for the roof can be tin copper aluminum or steel.
Install your metal edging around the perimeter of your roof.
You will need to lay some 1 by 4 inch pine boards lengthwise every two feet on your roof.
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.
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.
When choosing to install a metal roof homeowners need to.
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.
How to install a metal roof over shingles.
Put the steel down directly on a vapor barrier.