Asphalt roofs typically last 20 to 30 years depending on the installation and shingle quality.
Steel roofing over asphalt shingles.
Yes you can install a new metal roof over the top of an existing asphalt shingle roof provided there are not too many layers.
In a standing seam roof long single panels run vertically all the way from the eave to the ridge.
Installing steel roofing over existing roofing materials is fairly simple.
A steel roof is a lifetime investment lasting 50 years or more if it s a good one.
It doesn t matter if the air space is a half inch or six inches because the condensation factor will remain the same.
Asphalt shingle roofing is a dominant material for residences.
Anatomy of a steel roof this is what it looks like when you install a steel shingle roof system over an existing asphalt shingle roof.
Put the steel down directly on a vapor barrier.
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.
Asphalt roofs typically last 20 to 30 years depending on the installation and shingle quality.
Anatomy of a steel roof this is what it looks like when you install a steel shingle roof system over an existing asphalt shingle roof.
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.
Manufacturers provide 30 year warranties on metal roofing products.
See the full post here.
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.
In contrast steel shingles are small panels installed in horizontal rows much like other shingles.
How to install metal roofing over shingles.
However metal roofing is surging in popularity as more aesthetic options become available.
A steel roof is a lifetime investment lasting 50 years or more if it s a good one.
Steel roofing offers many benefits over slate tiles or asphalt shingles.