A lot of home owners are trying to “go green” when it comes to the environmental impact and cost-savings benefits for their house. News Flash: The roofing system is one of the biggest contributors to a home’s energy consumption. An energy-efficient roof, also called a “cool roof,” can be great for the environment and save you thousands of dollars.
If you are considering a new roof installation or having maintenance performed on your existing roof, here are a few ways you can make the most of your project with energy-efficient materials.
How can I make my roof more energy efficient?
When it comes to saving energy, what kind of materials are we talking about? All of them. The material, color, coating, and thermal mass of the roofing material are all significant factors. Furthermore, the design of the roof and attic, specifically the insulation and ventilation systems, can also make a substantial difference.
The design and material of your roof will determine your home’s solar reflectance index (SRI). According to EcoWatch, “SRI is expressed in the percentage of sunlight reflected (rather than absorbed) by your roof. The higher the SRI of your roof, the more energy-efficient your home will be.”
Experts agree that solar reflectance is the most important factor in determining how hot a roof gets. In fact, the federal Environmental Protection Agency reported that a cool roof can stay cooler than traditional roofs by 50 degrees Fahrenheit or more!
What is the best color roof for energy efficiency?
Many people wonder if the color of the shingle will affect temperature and insulation. The answer is yes and not really. While darker shingles do absorb more heat than lighter colors, no shingle in 90+ degree weather is going to be cool to the touch (or thermometer) regardless of the color. A white or light gray roof does reflect sunlight more than a black roof, but a five- or ten-degree differential in your attic isn’t going to make much difference in the home overall.
The biggest factor in keeping your HVAC bills low isn’t shingle color—it’s insulation and ventilation. If your attic or ceiling is properly ventilated, hot summer air is able to more easily escape rather than getting trapped inside the house. Quality roofing materials and well-sealed insulation will also help keep the house warmer in winter. Learn more about green solutions for insulation and ventilation.
If you’re going to buy asphalt shingles, then pick a color that appeals to you and goes with the style of the house. Often, a roof is 40% of the home’s area, so when it comes to curb appeal, shingle colors will matter.
If you are able to purchase “cool shingles,” that is your best bet for saving energy and affecting energy costs. These solar reflective shingles cost more than asphalt shingles, but can save you money by lowering your bills and preserving the life of your HVAC system.
With either a coating on them or granules mixed in the composition, cool shingles reflect the sun’s infrared rays at a higher rate than standard asphalt shingles; therefore, the shingles stay cooler, and so does the attic under the roof and the house in general.
What is the most energy-efficient roofing option?
People choose their particular roofing materials for different reasons. Setting cost aside for a moment, studies have shown that these are the top six best roofing materials, and why:
- Asphalt Shingle Roofing: Best Overall
- Slate Roofing: Most Durable
- Metal Roofing: Most Versatile
- Wood Shingles: Most Environmentally Friendly Option
- Clay Tile Roofs: Best Curb Appeal
- TPO Roofing: Best for Flat Roof
However, when it comes to finding the most energy efficient option, we have to think about different things. Most experts would agree that metal roofing is one of the best choices you can make for your roof in general. For starters, they’re the most energy-efficient roof for residential installations, but they can also last more than 50 years and require very little maintenance.
Learn more in our blog “Roofing 101: Understanding Different Types of Roofing Systems.”
Is there a company in my area that installs metal roofs?
We’re glad you asked. At Sentinel Roofing, we understand the importance of quality materials and superior workmanship. We strive to exceed our customers’ expectations in every project we handle.
We install several different kinds of residential and commercial roofing systems, including metal roofs. Floridians should consider metal roofing options because of their long lifespans, wind resistance, low maintenance, and fire-resistance. Plus, a metal roof is a beautiful design touch to set your home or business apart.
We are committed to providing reliable, durable, and affordable roofing solutions to ensure long-lasting and high-performing roofs that withstand the elements.
For answers to questions, more information, or to request a free estimate, contact us today.