Have you considered switching to metal roofing during your next roof renovation? Metal panels offer some advantages over other roofing materials. For example, they can easily meet different design and engineering needs. But what do people who have been using metal roofing for some time have to say about it?
To answer this question, we have prepared three case studies of residential metal roofing energy efficiency.
Why are Metal Roofs More Energy Efficient Than Shingle Roofs?
A metal roof can effectively reflect heat-causing electromagnetic waves from the sun. Something you should know about traditional asphalt shingle roofs is they absorb much of the sun’s heat and transfer it into the home, whereas metal roofing materials have reflective coatings that bounce sunlight away. This reduces heat buildup on the roof’s surface and helps maintain a cooler attic temperature. Additionally, metal roofs often allow for better ventilation options, further enhancing energy efficiency by promoting airflow and preventing heat accumulation under the roof deck.
How Does Metal Transfer Heat Into The Home?
Metal is a highly conductive material, meaning it easily transfers heat. When sunlight hits a metal roof, the roof surface quickly heats up. This heat can then be transferred in three main ways into the home:
Conduction: Heat moves directly through the metal panels and into the roof decking below. Since metal conducts heat efficiently, if there’s little or no insulation beneath the panels, that heat passes into the attic or living space.
Radiation: The hot metal surface emits infrared radiation, which can warm nearby surfaces, such as the underside of the roof deck or attic air.
Convection: Warm air in contact with the underside of the metal roof or within the attic space can circulate, transferring heat into the home unless proper ventilation or insulation is in place.
Because of this heat transfer, attic insulation and ventilation are critical under metal roofs to reduce heat gain inside the home and improve energy efficiency. Additionally, many metal roofs have reflective coatings that help reduce heat absorption, limiting how much heat is transferred indoors.
How Do Reflective Coatings Reduce Heat Absorption?
These reflective surface coatings—often made with special pigments or reflective paints—are designed to bounce a significant portion of the sun’s infrared and ultraviolet rays instead of absorbing them. The smooth, often light-colored or specially treated metal surface minimizes heat absorption by reflecting sunlight, which reduces the amount of heat transferred into the building below. This reflective property helps keep the roof cooler compared to traditional roofing materials like asphalt shingles, which absorb and retain heat.
It’s important to note that certain metal colors and finishes can absorb more sunlight than others. Darker metal roofs or those with matte finishes tend to absorb a higher percentage of solar radiation, which can increase the roof’s surface temperature. However, modern metal roofing manufacturers often apply specially formulated reflective coatings or use lighter colors to counteract this effect. These treatments help ensure that even darker metal roofs can reduce heat absorption, maintaining energy efficiency by reflecting a significant portion of the sun’s heat away from your home.
Save on Utility Bills In a Hot Florida Summer
When a metal roof efficiently reflects sunlight and proper insulation and ventilation are in place, less heat transfers into your home’s attic and living spaces. This means your air conditioning system doesn’t have to work as hard to keep your home cool.
As a result:
Your HVAC system runs less frequently and for shorter durations.
This reduces energy consumption and lowers your electricity bills.
It also decreases wear and tear on your air conditioner, potentially extending its lifespan and reducing maintenance costs.
In Florida’s hot and humid climate, where air conditioning can be one of the largest household expenses, having a metal roof designed to minimize heat transfer is a smart way to increase comfort and save money on utility bills all summer long.
Case Studies of Residential Metal Roofing Upgrade Benefits
1. Saving on Shingle Repair/Maintenance From Hailstorm Damage
In 2007, a hailstorm destroyed Gary Rutledge’s roof. The roof previously consisted of asphalt shingles. So, before starting the repair, Gary checked out other options.
One of Gary’s main reasons for trying something new was that asphalt shingles needed frequent maintenance and repairs. He decided to go with metal panels because they looked rich, and he learned they require little maintenance and are long-lasting. Moreover, he was interested in the way they could lower his utility bills.
The Result
One of the benefits of metal roofing he could see right away was that he could install it over the existing roof. By deciding to keep the remaining shingles on the roof, he saved on the cost of a tear-off and disposal at the landfill.
Ten to twelve years later, Gary said that the metal panels showed great results. They required very little maintenance, so he was able to save on the cost of continual shingle repairs. Moreover, hailstorms didn’t do any damage to the metal roof. And Gary was also able to save $30 on utility bills every month since he installed a metal roof.
2. Apartment Building Long-Term Savings and Enhanced Curb Appeal
Bob Ross Realty, the owner and manager of Axiom Apartments in San Antonio, Texas, decided to put metal roofs on two of his four apartment buildings. He wanted to change the existing shingles because they were worn out, and the cost of maintenance was very high. So, he opted for metal panels.
Some of the reasons he chose a metal roof are:
- Metal is long-lasting
- With a metal roof, he could choose and mix colors
- It’s easier to install metal roofs
- Long-term cost savings
The Results
The owners say that the exterior of their apartments with metal roofs continues to look fresh and new, despite the strong Texas sun. Moreover, they estimate they will save $70,000 to $80,000 in maintenance costs over the next ten years because they won’t have to paint at all. Furthermore, Steve Realty has estimated a $200,000 save on roof repairs and potential damage to the interior caused by leakage.
We should also mention the aesthetic appeal the metal roofs brought to the Axiom Apartments. The owners picked gray and blue metal panels and have been receiving praises for the look. The new, modern appearance has increased the number of visitors and residents.
3. Standing Seam Metal Roof Installation on a Jacksonville Waterfront Home
Located on a serene canal near the Intracoastal Waterway in Jacksonville, this stunning waterfront property recently received a new standing seam metal roof. Designed specifically for Florida’s coastal climate, the roof installation showcases the durability, corrosion resistance, and modern aesthetics of metal roofing ideal for salt air, humidity, and hurricane conditions.
Our skilled team installed high-performance standing seam metal panels that offer superior protection against corrosion and thermal expansion. The project not only enhanced the home’s weather resistance but also complemented its sophisticated look, blending seamlessly with the natural surroundings including tidal waters and native marsh grasses. With panoramic views from the rooftop and classic waterfront features like a private dock and covered boathouse, this job exemplifies metal roofing’s blend of function and beauty.
The Result
The new metal roof has significantly improved the property’s resilience to Florida’s harsh coastal weather, reducing future maintenance and repair needs. The sleek standing seam design elevated the home’s curb appeal, aligning perfectly with the high-end waterfront aesthetic. This project adds to our gallery of standing seam metal roof photos and demonstrates why metal roofing is the top choice for coastal homes in Jacksonville and beyond.
Conclusion
All in all, based on these case studies, we can conclude that metal roofs are cost-efficient. Not only is the installation process more affordable, but this type of roof doesn’t require as many repairs. Also, metal panels can endure extreme weather conditions, so the owners could save on interior and exterior repairs.
Also, we can safely say that metal roofs did a good job at being energy efficient in the long term. The owners were able to save on utility bills every month. To enhance these benefits even further, a roof coating can be installed over a metal roof. This additional layer not only improves insulation and reflects more sunlight but also protects the metal from corrosion and weather damage, extending the roof’s lifespan and boosting overall performance.
For your metal roofing consultation and savings estimate, get in touch with the roofing specialists at Prime Roofing. Call (904) 530-1446 today.
