This is by far the most common way to install a metal roof.
Putting metal roof over asphalt shingles.
Yes you can install a metal roof over shingles.
However you should only install a metal roof over shingles if you have less than four layers of shingles on the roof.
An affordable option and easier to lay than shingles tin is the most commonly used type of metal roofing.
Most codes now allow no more than two layers of roofing before.
Let s take a look at the most common types of metal roofs for houses.
Otherwise you will need to remove the shingles.
This is what it looks like when you install a steel shingle roof system over an existing asphalt shingle roof.
If you are trying to decide between the two materials it s important to carefully look at the metal over shingle roof problems.
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.
Things to know about 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.
Need a new roof.
Covering your existing asphalt shingles with metal roofing might be worth the expense.
Both metal and shingle roofs are great options for your next roofing project.
Can you avoid tearing off your old asphalt shingle roof by putting a steel roof over it.
However you ll want to check with your local building department before you make any decisions.
After all you ll be making a significant and long term investment.
Here are some pros and cons.
Can you install metal roofing over asphalt shingles.
As long as the plywood under the shingle roof is in good condition this way can provide many benefits.
Can i install a new 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.
Can you avoid tearing off your old asphalt shingle roof by putting a steel roof over it.
We get asked this question all the time.
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.
The second way to install a metal roof over a shingle roof is with the use of purlins or battens.
3 install 1 4 purlins down over the shingles before installing the metal roof the third way to install a metal roof over shingles is by applying 1 4 purlins over the shingle roof.
This post discusses using stone coated metal shingles over the top of asphalt shingles.