Can I Put Metal Roofing Over Shingles

However you should only install a metal roof over shingles if you have less than four layers of shingles on the roof.

Can i put metal roofing over shingles.

Can i install a new metal roof over shingles. Codes vary so call your local building department to know how to install metal roofing over shingles properly code wise. Both metal and shingle roofs are great options for your next roofing project. If you are trying to decide between the two materials it s important to carefully look at the metal over shingle roof problems.

However you ll want to check with your local building department before you make any decisions. 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. 1 remove the shingles before installing the metal roof the first way to install a metal roof over shingles is by completely removing the old shingles before installing the new metal roof. The vast majority of installations of the metal roofing systems produced by my company are over existing shingles.

The low weight of metal roofing is one thing that encourages this. Yes you can install a metal roof over shingles. A metal roof is an alternative to a shingle covered roof but a metal roof can actually be installed over shingles. Another added benefit is that the layers of your old roof will further insulate your home.

However there are some things that you will want to check out before doing it this way. This method has its benefits as well. 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. So if your roof has two layers it may require a complete tear off even though steel is lighter than asphalt.

A benefit to doing it this way is that you can see if there is any rotten plywood that needs to be replaced before installing the new roof. For one you will need to check with your local building department and ask if this is an approved installation method. Most codes now allow no more than two layers of roofing before requiring a complete tear off. Metal roofs are much lighter than shingles so they are able to be installed over an existing roof.

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. One big advantage to metal roofing is its light weight which means metal roofing can be installed over an existing shingle roof. Otherwise you will need to remove the shingles. After all you ll be making a significant and long term investment.

However once again our team never recommends doing so.