Can You Install Tin Roof Over Shingles

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.

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. However you should only install a metal roof over shingles if you have less than four layers of shingles on the roof. Step 1 make a slat board base on top of the shingles. Some jurisdictions require a full and complete tear off whenever a new roof is being installed.

The problem with this is that as the metal heats up and expands or cools down and contracts it moves a little on the roof. Codes vary so call your local building department to get the straight story. Most codes now allow no more than two layers of roofing before requiring a complete tear off. Yes you can.

So if your roof has two layers it may require a complete tear off even though steel is lighter than asphalt. Most codes now allow no more than two layers of roofing before requiring a complete tear off. So if your roof has two layers it may require a complete tear off even though steel is lighter than asphalt. 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.

Yes you can install a metal roof over shingles. 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. Another added benefit is that the layers of your old roof will further insulate your home.