Codes vary so call your local building department to know how to install metal roofing over shingles properly code wise.
Can you install tin roof over shingles.
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.
If you install metal over shingles if you do decide to install your new metal roof over your old shingles be sure to consult local building codes.
Codes vary so call your local building department to get the straight story.
Some jurisdictions require a full and complete tear off whenever a new roof is being installed.
Most codes now allow no more than two layers of roofing before requiring a complete tear off.
Some people think that they can just install the metal roofing right over the old shingles roof without any barrier in between but this is highly not recommended.
So if your roof has two layers it may require a complete tear off even though steel is lighter than asphalt.
Yes you can.
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.
Another added benefit is that the layers of your old roof will further insulate your home.
Most codes now allow no more than two layers of roofing before requiring a complete tear off.
Step 1 make a slat board base on top of the shingles.
So if your roof has two layers it may require a complete tear off even though steel is lighter than asphalt.
However you ll want to check with your local building department before you make any decisions.