One of the great aspects of a new metal roof is that in many cases you can install metal roofing over asphalt shingles. This will make your life much easier, because you won’t have to strip everything out and start from scratch. However, there are some important things to remember along the way and some guidelines you will need to follow. Pay attention to these rules and points and you’ll be able to install metal roofing over asphalt shingles in no time.
First things first, you have to understand the specific regulations of the area that you’re in. You may find that in some cases you cannot re-roof over two or three layers, which means you could be in a jam and won’t be able to install metal roofing over asphalt shingles. Even if this is the case in your district, sometimes exceptions can be made via an inspection when taking into account the light weight and the strength of residential metal roofs.
With that out of the way, it’s time to get started with the actual directions of the process. You need to decide on your materials and the manufacturer that you’re purchasing and then you need to determine how those materials need to be installed. This is one of the most important steps in the process because it will ultimately determine how you proceed. You may find out that you need to work with a spaced surface, but in most cases you’ll need a solid surface to work with. A spaced surface will require that you lay down some wooden framing over top of the shingles first.
Another one of the extremely important steps is that you put down a layer of underlayment between the existing shingles and your new metal surface. This is crucial when you install new residential metal roofs because it is going to prevent the rotting and deterioration of both the shingles and the wood frame underneath them.
Before you proceed with this, also take heed to follow the directions of inspecting the shingles for leakages and rotting areas. These will need to be removed so the problem doesn’t worsen and spread unnoticed underneath the metal. Forgetting about this step can lead to big problems down the road.
Now it’s time to actually go about installing the metal roofing itself. You should take heed to listen to whatever specific instructions the manufacturer provides for its products. All metal roofing is going to be slightly different, and it’s more complicated than just nailing down asphalt shingles. So take your time and follow the guidelines that are given and you’ll be fine.
Hopefully by this point you should have a good understanding of how to install metal roofing over asphalt shingles. It’s something that can be done, and it’s becoming more common these days as well. Be sure that it’s in line with your local regulations, that you follow the guidelines of your manufacturer and that you put down underlayment in between the shingles and the new metal surface.