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.
Install steel roof over singles.
After all you ll be making a significant and long term investment.
The second way to install a metal roof over a shingle roof is with the use of purlins or battens.
If you are trying to decide between the two materials it s important to carefully look at the metal over shingle roof problems.
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.
Noise is usually not a factor if you are installing a steel roof over asphalt.
Anatomy of a steel roof.
Can i install a new metal roof over shingles.
In a standing seam roof long single panels run vertically all the way from the eave to the ridge.
Both metal and shingle roofs are great options for your next roofing project.
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.
Galvanized steel which is created by using a soft layer of zinc to protect the inner layers is the most common type of steel roofing.
This is by far the most common way to install a metal roof.
As long as the plywood under the shingle roof is in good condition this way can provide many benefits.
This method has its benefits as well.
A metal roof is an alternative to a shingle covered roof but a metal roof can actually be installed over shingles.
We get asked this question all the time.
Steel roofing can be costly but it is a lifetime investment.
In a standing seam roof long single panels run vertically all the way from the eave to the ridge.
A steel roof is a lifetime investment lasting 50 years or more if it s a good one.
Yes you can install a metal roof over shingles.
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.
This is what it looks like when you install a steel shingle roof system over an existing asphalt shingle roof.
Otherwise you will need to remove the shingles.
However you ll want to check with your local building department before you make any decisions.
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.
Things to know about metal over shingle roof problems.