For many years, asphalt shingles have been the most popular roofing option for both residential and commercial buildings. But today, metal roofs are becoming the go-to-go option for more and more people.
If you had installed a shingle roof but are now looking to make the switch to metal roofing, you may wonder whether you can install the metal roof over shingles. Keep reading as this post answers this question and helps you learn more.
So, Can It Be Done?
Yes! Metal roofing can be installed over asphalt shingles. In fact, this is one of the major reasons for the growing popularity of metal roofs. Their installation process doesn't require completely tearing off the old roof; hence, it's less time-consuming and cheaper.
You see, many people think of metal roofs as being super-heavy and cumbersome. But in reality, they are very light. Putting a metal roof over asphalt shingles doesn't significantly add the overall load such that the home structure cannot bear.
What Are the Pros of Installing a Metal Roof Over Asphalt Shingles?
The biggest benefit is obviously the fact that you get to save money. You won't have to cover the labor cost of ripping off your shingles. Therefore, it's a good idea if you are operating on a tight budget or you want to enjoy the luxury of a metal roof without breaking the bank.
Moreover, installing a metal roof over another roof adds an extra insulation layer, preventing heat and cool air from escaping. This will come in handy if your area experiences cold climates. And when it's extremely sunny or hot outdoors, your metal roof reflects heat away instead of absorbing it, keeping you comfortable indoors.
What Are the Cons of Installing a Metal Roof Over Asphalt Shingles?
Putting a new roof over shingles can cause structural damage if there are already many layers of shingles. If your roof has been covered multiple times, the layers may be too thick and will need to be removed before another roof is placed on top.
Another drawback is that you don't get to replace other internal parts of the roof like the underlayment or decking. If these parts are weakened or damaged, it could result in a costly problem later on.
The Bottom Line
Before installing a metal roof over a shingle roof, ask your roofing contractor to assess the condition of your old roof to determine if it's a good idea. If there are existing issues, such as roof leaks or rotten boards, you may need to address them before going ahead with the project. And if your contractor advises you to go for a complete roof replacement, trust their experience that they know best.
Very few roofers would say their job is easy. In fact, many describe the work as downright tough! But that does not mean that roofers do not enjoy or value the work that they do. Many workers get satisfaction from working with their hands, and they really enjoy creating a roof from simple materials. They also like the logistical challenges, such as figuring out how to get shingles up on a tall roof, or how to most safely repair a damage gutter. If you'd like to learn more about roofing as a profession, then you've arrived at the right blog.