Steel shingles weigh about 1 4 what asphalt shingles weigh and aluminum shingles weigh about 1 8 what standard shingles weigh.
Installing metal roofing over shingles youtube.
The vast majority of installations of the metal roofing systems produced by my company are over existing 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.
This is by far the most common way to install a metal roof.
Can you put metal over shingles.
This is part 1 of a 6 part video series explaining how i installed a metal roof on my house.
As long as the plywood under the shingle roof is in good condition this way can provide many benefits.
Make sure roof is square.
Click here to see an actual metal over shingle installation.
Consult the guide for your shingle brand to determine the specific method of installation required to preserve the warranty.