Can a Metal Roof Be Installed Over Shingles?

When your roofing system fails, moisture can penetrate your home and cause serious damage. If you need a roof replacement, contact a local roofer promptly to prevent costly moisture damage. As you consider what material to choose for your new roof replacement, understand that while shingles may have been the primary “go-to” roof material in the industry in the past, a strong competitor is on the horizon: metal roofing. In addition to being durable, metal roofing offers the advantage of an efficient and less costly roof replacement when installed on top of shingles. Learn more about this process below.

Benefits of Installing Metal Roofs Over Shingles

Although asphalt shingles have dominated the roofing market for years, homeowners are also turning to modern, durable metal roofing as a longer-term solution. Keep in mind that removing and disposing of your current roofing material contributes significantly to the cost of your roof replacement. The upside to metal roofing is that it can be installed over your current roof as long as your building codes allow it. This can cut down on costs significantly, enabling you to invest in a sturdy new roof while sticking to your budget.

Metal roofing is a fabulous option for homes as long as they don’t have a flat roof pitch. Here are some of the aspects homeowners love about metal roofing that may just tip the scales for you:

1. Contemporary look

If you love a Farmhouse design, a gorgeous metal roof can complement it perfectly. And if you prefer a shingle-style look to your roof, the great news is that metal roofing is now also available in shingle style, and it’s hard to tell the difference between it and the looks of asphalt shingle roofing.

2. Readily available

It used to be that metal roofing was only seen on high-end homes, but now it’s found on conventional homes. Thanks to its increasing availability and improved manufacturing process, metal roofing is on the rise when it comes to material choices for homeowners in need of a roof replacement. Metal roofing has been increasing in popularity by about 3% per year over the last few years. Roughly 15% of today’s residential roofing installations use metal roofing material. (Note: asphalt shingle roofing has decreased in popularity and now only makes up about 59% of roof installations.)

3. Safe

A technical bulletin for the Metal Construction Association stated, “Metal roofing does not in any way increase the risk of a lightning strike. Because metal roofing is both an electrical conductor and a noncombustible material, the risks associated with its use and behavior during a lightning event make it the most desirable construction available.” Lighting seeks a path to the ground, so trees tend to attract it. Metal roofs are not connected to the ground, so there isn’t any more reason for lightning to strike a metal roof than an asphalt one.

4. Long-lasting

One of the best features of a metal roof is its durability. The decades you get out of this roofing material can make your initial investment prove to be a wise one. While asphalt roofing lasts 15-30 years, metal roofing can last 50-70 years. That’s a durable roof! Think of the time and money you will save by choosing such a resilient roofing material. You won’t have to replace it for at least five decades.

5. Warranty coverage

Metal roofing usually carries a 30-year warranty, giving you peace of mind about your investment.

6. Not noisy

Metal roofing is installed over a solid substrate, and when it is installed properly, it’s not any noisier than asphalt roofing. Your attic and insulation dampen the sound from rain or storms just like they do for asphalt roofing.

7. Insect resistant

The trouble with insects is that they love to infest some siding and roofing materials—like wood. The good news is that metal roofing offers nothing appetizing to an insect. They can’t eat it, and they don’t build nests on metal. As a result, you can avoid the hassles of a pest infestation and enjoy a gorgeous metal roof.

8. Non-combustible

Metal roofing won’t fuel a fire, so you can rest at ease that your family is well protected.

9. Moisture resistant

Water flows down your metal roof with ease. It won’t get absorbed into your home. You can avoid the hassles of wood rot, mold, and mildew by investing in a metal roof for your home.

10. Energy saving

Metal roofing can decrease your air conditioning costs by up to 25%, saving you on utilities every year.

11. Versatile

You don’t have to have a steep roof to install metal roofing. In fact, standing seam metal roofing works well on low-pitched roofs. Standing seam is installed with big sheets with raised seams that seal to keep water out.

12. Recycled

While asphalt roofing ends up in a landfill and needs to be replaced every 15-30 years, metal roofing is recyclable and lasts 50-70 years!

What to Expect From the Roof Replacement Process

Metal roofing can be installed with or without removing your current roof. No matter which route you choose to take, be sure you hire skilled metal roofing contractors to do the work. This is particularly important to avoid moisture buildup between your metal roof and your old roof. If moisture penetrates, wood rot, mold, and mildew could result. A skilled local roofer can easily avoid these problems by installing the metal roof over a furring strip, which will raise the metal and create a ventilated air pocket between roofing layers.

Understanding Metal Roofing and Homeowners Insurance

Don’t overlook the importance of making certain your homeowners' insurance covers your roofing material in the case of severe storms. Golf ball sized hail can damage both metal roofing and asphalt roofing materials. The good news is that your homeowners' insurance should cover any damage.

Frequently Asked Questions About Installing Metal Roofs Over Asphalt Shingles

Curious to learn more about having a metal roof installed over your asphalt shingle roof? Here are some common questions, as well as answers from our expert roofers:

In what circumstances should I not install a metal roof over asphalt shingles?

If the underlying roof is not in good condition, it won’t be able to support the additional weight of the roof replacement. That’s why it’s crucial to have your roof thoroughly inspected by an experienced roofing company before having a metal roof installed over shingles.

How should I maintain my new metal roof?

The good news is that metal roofs are quite low maintenance when compared with other types of roofing systems. However, regular inspections are still needed, particularly after severe storms, to make sure everything remains in good condition and to remove any debris.

Could having a metal roof installed over my current roof increase the value of my property?

Yes! As metal roofs are prized for their durability and energy efficiency, not to mention their lasting performance, they’re quite attractive to potential buyers and a good option if you are considering putting your home on the market in the future. Plus, their sleek appearance could boost the curb appeal of your property as well.

Could installing a metal roof over shingles affect my ventilation system?

This could happen, but not when you work with experienced roofers who engage in the best roofing practices. For example, our team at American Way Exteriors will carefully plan to allow for proper ventilation.

Learn More About Roof Replacements With American Way Exteriors

At American Way Exteriors, a veteran-owned roofing company, we offer exceptional workmanship, premium materials, and fair pricing. When you’re considering a roof replacement, our friendly team of local roofers will make sure you are getting the most durable roof for your home. Furthermore, we can advise you on whether having a metal roof installed over your shingle roof is the best plan of action for your circumstances. Contact us today to get a quote!