Save Energy with Energy-Efficient Roofing

September 4, 2023

Homeowners are constantly looking for ways to save energy and reduce utility bills. One often overlooked aspect of home remodeling is the roof. Did you know that energy-efficient roof replacement can significantly contribute to reducing energy consumption and lowering your monthly utility expenses?

We will explore the benefits of opting for a greener roof replacement and how it can transform your home into an energy-saving haven. Discover the key advantages of energy-efficient roofing and why it should be a top consideration for your next home makeover project.

Understanding Energy-Efficient Roofing

Did you know that a staggering 90% of roofs in the United States are constructed with dark materials that absorb heat instead of reflecting it? This leads to rooftop temperatures soaring 90 to 100 degrees higher than the outside air temperature, causing the heat to infiltrate your attic and ultimately your home.

While insulation provides some relief, it doesn’t entirely prevent the heat transfer from the roof to the attic. Consequently, an overheated attic forces your air conditioning system to work harder than necessary, impacting energy efficiency. There are two critical factors that determine a roof’s effectiveness in preventing heat transference: solar reflectance and ventilation. Understanding these factors can help you plan for a better energy efficient room.

Solar Reflectance Index (SRI)

The Solar Reflectance Index quantifies a roof’s capacity to reject solar heat through reflectance and release any absorbed heat through thermal emissivity. The higher the SRI number, the better the roof’s performance. Raising the SRI from 25 to just 40, for instance, can reduce the surface temperature of your roof by over 13 degrees. This can potentially translate to energy bill savings of 15-20%.

Lighter-colored roofs exhibit superior heat reflection compared to darker hues, and certain coatings enhance reflectivity even further. The key to an energy-efficient roof lies in its ability to redirect the sun’s radiation away from your house, minimizing heat transfer to the attic and subsequently your living space. While solar reflectance may seem less significant in colder climates, even in regions with short summers, the accumulated savings can be substantial.


Proper ventilation plays a vital role in maintaining a cool roof. Effective ventilation prevents the buildup of heat in the attic resulting from heat transfer. Without adequate ventilation, attic temperatures can soar as high as 160 degrees Fahrenheit when the outside temperature reaches the 90s.And that excess heat needs an escape route. Insufficient ventilation will allow the heat to infiltrate your home, potentially causing not only increased electricity consumption but also roof damage in extreme cases.

Residential roofing typically employs three main types of vents: static vents, wind-powered vents, and electric vents. Each has its advantages and disadvantages, and your roofing service provider can provide more precise guidance on the appropriate vent selection and ventilation requirements. As a general guideline, a ratio of 1:300 (1 square foot of ventilation for every 300 square feet of roof surface) is recommended.

By considering both solar reflectance and ventilation, you can ensure that your roof contributes to an energy-efficient and comfortable living environment.

Benefits of Energy-Efficient Roofing

When considering the advantages of an energy-efficient roof, it’s not just about the immediate savings on your energy bill. While reduced energy consumption is undoubtedly a major benefit, there are several additional ways in which an energy-efficient roof can provide a return on your investment. Let’s delve into these lesser-known benefits that make opting for an energy-efficient roof an even smarter choice:

Lower maintenance costs: Energy-efficient roofs are made with high-quality materials that require less maintenance and fewer repairs over time, resulting in long-term cost savings.

Increased property value: An energy-efficient roof adds value to your property, making it more attractive to potential buyers and potentially commanding a higher resale price.

Extended roof lifespan: Energy-efficient roofs are built to be durable, with advanced materials and construction techniques that increase their lifespan and reduce the need for premature roof replacements.

Prolonged HVAC system life: By regulating temperatures and reducing the workload on your HVAC system, energy-efficient roofs help your HVAC system operate more efficiently, leading to an extended lifespan and potential savings on maintenance or replacement costs.

Enhanced comfort in non-air conditioned spaces: Energy-efficient roofs also improve comfort in non-air conditioned spaces like garages or covered patios, reducing excessive heat buildup and creating more enjoyable areas for various activities.

Environmental benefits: Energy-efficient roofs reduce power plant emissions by minimizing the energy needed for cooling, contributing to a more sustainable future and combating climate change. Choosing an energy-efficient roof is an environmentally responsible choice.

Exploring the Range of Energy-Efficient Roofing Types

Reflective Roof Coatings: Reflective coatings applied to existing roofs enhance energy efficiency by reflecting sunlight. These light-colored or white coatings protect against UV rays and offer some water resistance. However, they are best suited for warmer climates and may lack insulation in colder regions.

Asphalt Shingles: Low-maintenance asphalt shingles can be made energy-efficient by incorporating coated granules. These granules increase reflectivity, improving overall efficiency. Although susceptible to wind and storm damage and mildew, asphalt shingles remain a cost-effective option.

Metal Roofing: Metal roofs are budget-friendly, long-lasting, and can be enhanced for energy efficiency with cool roof coatings. They are ideal for warm climates but may lack adequate insulation in colder areas. Additionally, metal roofing is quick and easy to install, reducing installation costs.

Green Roofing: Green roofs feature a layer of vegetation, offering water protection, drainage, shade, and insulation. They create a cooler microclimate, reducing the need for air conditioning. While green roofs require more maintenance and cost, they contribute to environmental sustainability.

Solar Shingle Roofing: Solar shingles generate renewable energy, offering long-term savings despite the higher upfront cost. These shingles blend seamlessly with your roof, providing both a stylish appearance and energy efficiency.


Choosing the right energy-efficient roofing option involves considering factors such as climate, budget, and aesthetic preferences. Consult with local Frederick roofing professionals to determine the most suitable choice for your home, enabling you to enjoy the benefits of an energy-efficient roof.