What to Know About Installing a Metal Roof Over Shingles

Are you looking to upgrade your current asphalt roof? You may have already learned by talking to a contractor through your own research that installing a metal roof over your existing shingles is possible. Is this the best option for your home and budget? We have compiled the key things you need to know about this installation method to help you make the right decision.

Are You Able to Install a Metal Roof Over Shingles?

The short answer is yes. Installing metal roofing over existing shingles is an excellent approach used by contractors to help homeowners save on expenses and maximize the longevity of their new roof. While shingles might be a relatively inexpensive roofing material initially, they require constant maintenance and need to be replaced often.

A key issue with this, besides the cost of replacement, is that shingles are not recyclable. Landfills and disposal companies can charge a large fee to accept them, and the consistent creation and disposal of shingles is harmful to the environment. However, a metal roof can be completely recycled at the end of its lifespan, helping to protect and preserve the environment.

By selecting a metal roof, you are able to break free from the shingle replacement cycle. While metal roofing does require a larger initial investment, it can last over 50 years with little maintenance. A metal roof also adds to your home’s curb appeal and value as it continues to look great over time.

The Cost of a Metal Roof Compared to Shingles

When considering metal roofing, the cost is an important consideration for many. While it is cheaper to purchase and install shingles, a metal roof offers you better value over time. Steel roofing improves the curb appeal of your home and has the durability to last for decades. When properly installed, a metal roof can handle anything that Mother Nature may throw at it. When you have your roof installed by professionals such as Ironclad, you will never have to purchase another roof again in your lifetime.

Considerations When Installing a Metal Roof Over Shingles

If you choose to install a metal roof over your shingles, you should keep the following things in mind.

Warranty & Quality

Most metal roofing manufacturers offer a warranty, and it is recommended to only work with those that do. To ensure you get the best results that will last without needing repair work or warranty claims, we strongly recommend that you select a roofer who offers durable and reliable materials. Ensure their team is fully qualified and licensed so you can be confident about its installation.

Trim

The trim is the most important aspect when it comes to the aesthetics of your roof. Wrapping all the edges with flashing improves the roof’s appeal and provides resistance against rain, wind and snow. Having ice guards is also a great idea to help keep snow and ice from sliding off your roof during the winter.

Safety

If you are going to be touching the roof, it is recommended that you wear gloves. Also, since the metal panels do not have the same texture as asphalt shingles, be aware that they can be more slippery. If you do need to go onto the roof for any reason, ensure you follow all safety precautions and try to avoid going up during windy, rainy, or snowy days to prevent slipping.

Frequently Asked Questions About Installing Metal Roofing over Shingles

Do I Need Underlayment When Installing Over Shingles?

All roofs need an underlayment. However, when installing a metal roof over shingles, the shingles may be able to act as an underlayment. Over time as the shingles deteriorate, you may need to replace them with a proper underlayment. That said, if you do not wish to remove the shingles initially, it is best to ensure an underlayment is installed over the old shingles.

What Are the Advantages of Installing a Metal Roof Over Shingles?

By installing a new roof on top of your existing shingles, you are adding an additional layer of insulation. This can help you keep your home warmer and cooler throughout the year, saving on energy costs. Additionally, building over the existing shingles saves the labour cost that would come with removing them.

Is There a Limit of How Many Layers of Shingles You Can Install a Metal Roof Over?

Many local building departments will allow you to install a metal roof over one or two layers of shingles. If you have any more than that, they may require that you remove the shingles before you can install the new roof.

Get Ironclad Protection with Our Metal Roofing System

At Ironclad Roofing, we are passionate about metal roofing. We have decades of experience and are one of the most trusted providers of metal roofing systems in Toronto. Our installation crews are properly trained and certified and have extensive experience in installation and customer relations.

We take every step to ensure that we treat your home with the respect it deserves and do not leave the site until you are fully satisfied with the results. Get in touch with us today by calling 905-752-4685 or submitting an online request for a free estimate. Let us help you give your home a layer of armour that will last a lifetime.