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Metal Roof: Why It's Really Energy Efficient
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Metal Roof: Why It's Really Energy Efficient

January 2, 2023
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8
Min Read
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The Metal Roofers
Thinking about a metal roof? Learn how its energy-efficient design can help lower your cooling costs and improve sustainability

Metal roofs have many distinct advantages over other roofing materials. They are durable, lightweight, easy to install and are fireproof. But one of the reasons why they stand out over the rest is due to their incredible energy-efficiency. Their high reflectivity and longevity will save you thousands of dollars in the long run. With a wide variety of colors and styles to choose from, The Metal Roofers can achieve virtually any look you want for your home, while saving you money.

Metal Roofing's Energy Efficient Qualities

Metal Roofing is commonly used for large, commercial roof types, however, it is not unusual to see the roofing material on many residential homes in Nashville. While they are slightly pricier upfront in comparison to other roofing materials, you get your money's worth when it comes to how much you'll be saving on your energy bills.

High Reflectivity

When it comes to roofing, no other material matches the reflective properties of metal roofing. While the stronghold of metal's reflectivity lies in its various coatings and finishes, it is important to note that a simple, unfinished metal roof is capable of reflecting more harmful UV rays than an asphalt shingle roof, which tends to absorb and hold onto that heat.

Environmentally Friendly

In most cases, a quality metal roof will be made of anything from 35% to 95% recyclable and/or recycled material. While the lifespan of a metal roof will be very long, when it does come time to remove it for whatever reason, the entire thing will be 100% recyclable, as opposed to being dumped in a landfill.

Low Maintenance

Maintenance on a metal roof is so easy that you could almost install it and forget about it. As with any roofing material, regular maintenance is a must, but the upkeep on a metal roof is so limited, that compared to other solutions like shingles, concrete, or tile, you'll have a worry-free roof and save on costs in the long run.

Metal Roof Coatings for Increased Protection and Reflectivity

By coating your metal roof, not only will you be increasing its lifespan, protecting it from the elements and regular wear and tear, but you'll also be increasing its reflective properties thus saving you more in the long run.

Some metal roof coatings include:

Acrylic

Acrylic or elastomeric coatings are highly reflective and help prevent rust. It's strong but flexible, making these acrylic coatings ideal for metal roofing because they will expand and contract with the metal. These coatings are easy to apply via a spray nozzle, making the process quicker and less labor-intensive. It's also cost-effective, suitable for most climates, and provides the best value.

Asphalt

Asphalt-based roof coatings use a solvent to make them thinner and easier to apply to a roof without heavy equipment. It can be brushed or sprayed on, and it works best on metal roofs, built-up roofs, and membrane roofs.

Polyureas

Polyureas take many forms. These roof coatings provide abrasion resistance, corrosion protection, structural enhancement, chemical resistance, and waterproofing features. Polyureas are common on metal roofs.

In need of metal roofing services? We're here to help. Contact The Metal Roofers today to schedule your free consultation with one of our trusted metal roofing specialists.

Frequently Asked Questions

Does a thicker gauge metal roof cost significantly more?

The material cost difference between gauges is real but not dramatic. Going from 26 to 24 gauge typically adds $1.50–$3.00 per square foot to the project. On a 2,000 sq ft roof, that's roughly $3,000–$6,000 more — but you're getting a meaningfully more durable roof that may save money on repairs over decades.

Is 29 gauge metal roofing good enough for a house?

We generally don't recommend 29 gauge for primary residences in Nashville. While it works fine for barns, carports, and outbuildings, it's thinner and more susceptible to denting from hail — and Nashville gets plenty of hail. The cost difference between 29 and 26 gauge is modest compared to the performance gap.

What gauge metal roof is best for Nashville homes?

For most Nashville residential projects, 26 gauge is the standard choice. It provides excellent wind and hail resistance for Middle Tennessee's climate at a reasonable price point. 24 gauge is the premium option for homeowners who want maximum durability and dent resistance.

MR
The Metal Roofers
Nashville, Tennessee · Est. 2003