Venting the eaves to vent the roof holes are cut in the old roof above the soffit which pulls air through the soffit vents underneath.
Installing metal roofing over shingles video.
We get asked this question all the time.
Steel shingles weigh about 1 4 what asphalt shingles weigh and aluminum shingles weigh about 1 8 what standard shingles weigh.
We re going to break them down so you know what to look out for.
But first here are a few precautions about the underlying material.
The vast majority of installations of the metal roofing systems produced by my company are over existing shingles.
However you should only install a metal roof over shingles if you have less than four layers of shingles on the roof.
Make sure roof is square.
This is what it looks like when you install a steel shingle roof system over an existing asphalt shingle roof.
Steel roofing offers many benefits over slate tiles or asphalt shingles metal roofing is resistant to fire rot and termites manufacturers provide 30 year warranties on metal roofing products.
Installing steel roofing over existing roofing materials is fairly simple.
Otherwise you will need to remove the shingles.
Installation of metal roofing over 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.
Most metal shingles will be attached to the roof using metal shingle clips but metal roofing shingle installation can be system specific.
Can i install a new metal roof over shingles.
Address any existing roof leaks and replace rotten rafters or.
A metal roof is an alternative to a shingle covered roof but a metal roof can actually be installed over shingles.
If you choose to install metal roofing over shingles there are certain things you must keep in mind.
As long as the plywood under the shingle roof is in good condition this way can provide many benefits.
This is by far the most common way to install a metal roof.