What are COOL Roofing Shingles and Solar Reflectance

COOL Roofing Shingles and Solar Reflectance in roof

Solar Reflectance and Thermal emittance are essential when choosing roofing materials for your home. Choosing roofs that reflect solar energy will not only save energy but also reduce the amount of heat that enters your home. Moreover, it will also help you reduce the costs of roofing materials.

Thermal emittance

Thermal emittance is a measurement of the amount of heat a roof rejects. If a roof has a high thermal emittance value, less heat is transmitted to the interior of the building. However, this rating is not enough to qualify for energy efficiency. To qualify for excellent roof status, asphalt shingles must be rated by the Cool Roof Rating Council (CRRC) according to their thermal emittance and solar reflectance. These values must meet specific energy code requirements.

Thermal emittance is measured on a scale of 0 to 1. The higher the number, the cooler the roof will be. A higher number indicates a more excellent roof in a solar energy environment. In contrast, a low number indicates a higher amount of heat will be absorbed by the roof and transferred into the building below.

Thermostatically-efficient roofs reduce energy costs while reducing air pollution and greenhouse gas emissions. They also improve human health. Several cool roofing shingles are available, including the Presidential Solaris (r) by CertainTeed and the Landmark Solaris(r) by Owens Corning.

The Solar Reflectance Index (SRI) of a good, excellent roof shingle should be 0.25. This number is significant because higher SRI roofing shingles will reduce the cooling load on your home. But the SRI does not guarantee compliance with energy codes. It is essential to read and understand the SRI to find out if your roof can meet energy code requirements.

COOL roofing shingles reflect and emit more sunlight than ordinary white materials. They also reduce the amount of solar energy that reaches the building below. This helps lower energy bills and improve comfort.

Solar reflectance

Choosing a roofing material that can reflect solar energy is an important consideration. The right roofing shingle can reduce the temperature inside the attic and energy bills. Owens Corning’s Cool Roof Collection is designed to reflect the sun’s rays, keeping your roof cooler than the rest of the home. The shingles have a unique blend of solar-reflecting granules, which reflect heat away from your roof. They also come in rich, vivid colors.

COOL Roofing Shingles are available in a variety of colors and textures. These shingles have been rated by the Cool Roof Rating Council (CCRC) based on their solar reflectance. In addition, they must meet specific energy codes. The research team is working on design software to help manufacturers develop cool-color coatings. This software will calculate the reflectance of a coating based on absorption properties and geometry.

In addition to energy savings, cool roofs can reduce the heat in urban areas. These roofs can lower urban heat island effects, making cities up to 10 degrees hotter than the surrounding countryside. These roofs also make homes more comfortable in hot weather. The extra benefits of cool roofing are not only environmental but also beneficial to human health.

Cool roofs are becoming mandatory in some parts of the United States. California has made them mandatory in its Energy Code since October 2008, and New York requires all roof interventions to meet the ENERGY STAR requirements. In addition, Chicago is rolling out an incentive program to encourage the use of cool roofs in the city.

As you can see, cool roofs reflect solar energy, reducing energy bills. Excellent roofing materials have high thermal emittance, which means they reject heat. Using a roof with high solar reflectance helps your building feel cooler and reduces air conditioning costs.

Asphalt Shingle Cellophane Strip Guide

COOL Roofing Shingles

These COOL Roofing Shingles have solar reflective granules that reflect light and decrease the heat that enters the home. In addition to their solar-reflective qualities, these shingles can extend the roof’s life, making them a wise investment for homeowners. They are an excellent choice for homes in hotter climates and are required in some areas. They can also be eligible for tax credits.

Researchers have been experimenting with different kinds of pigments to increase solar reflectance. Some pigments reflect near-infrared light, while others reflect visible light. The goal is to find a pigment that best reflects visible light while absorbing near-infrared light.

The solar reflectance of a roof is a critical factor in determining the overall efficiency of the structure. Roofing shingles with a higher solar reflectance will reduce the temperature of the building more than those with a lower value. To qualify as a “cool” roof, a roofing shingle must meet the requirements set by the California Title 24 and Energy Star programs.

The TruDefinition Duration COOL Shingles from IKO combine superior thermal performance and energy efficiency. The shingles’ unique granules reflect sunlight to the building, reducing energy use. Roofing Shingles with a high solar reflectance can also reduce energy bills.

Cool roofs can also reduce the impact of the urban heat island effect, making cities as much as ten degrees hotter than surrounding areas. Cool roofs help homes stay comfortable in hot weather and can also reduce the amount of energy used by air conditioning systems.


The Solar Reflectance Index (SRI) of roofing shingles is an important consideration when choosing a roofing product. This measurement indicates how efficiently a roofing product reflects solar radiation. The higher the SRI number, the better the solar energy efficiency of a home. Generally, a higher SRI means a roof is more reflective of the sun’s light.

There are a variety of solar reflective shingles available for homeowners looking to reduce cooling costs. Prices for solar reflective shingles range from $2 to $3 per square foot, and they typically come in a variety of colors. They also have higher solar reflectance ratings than dark-colored roofing materials but lower solar reflectance ratings than white roofs. In addition, solar reflective roofs have excellent thermal emittance ratings, which allow you to estimate how much energy your home will save.

The savings of installing a cool roof are significant. For a typical 20-year lifespan, these shingles can save an average of 15% in heating costs. The Energy Star program offers a tax credit of up to $1,500 for homeowners installing cool roofing.

COOL Roofing Shingles are specially designed with solar-reflecting granules to minimize heat transfer into a home. Depending on where you live, local building codes can even require COOL shingles. Proper attic insulation is also crucial in reducing energy costs.

A cool roof can mean a more comfortable home and a lower electric bill during the warmer months. Cool Roofing Shingles are typically comprised of three layers. The first layer provides insulation, while the second and third layers reflect solar energy.


If you are planning to install a new roof on your house, you may want to consider COOL Roofing Shingles. These shingles have specialized granules that reflect solar radiation. This helps reduce heat transfer into homes. In some climates, COOL shingles are required by law. They can save you money on energy bills. You should also consider proper attic insulation.

The US Department of Energy (DOE) certifies COOL Roofing Shingles. These shingles have a solar reflectance of at least 25%, more than double what a standard asphalt shingle can achieve. However, the reflectance may decrease due to dirt, weathering, and other factors. Even so, the goal is to have a roof that reflects at least 15% of the sun’s energy after three years.

Cool roofs are already being used in several cities nationwide, including Chicago, Miami, and Denver. A cool roof can lower the amount of air conditioning a building needs by as much as 15 percent. The amount of savings depends on the climate, the size of the house, and the type of roof material. niwideThe downside is that homeowners have to use their HVAC systems more than they usually would. They end up spending more on air conditioning in the summer months.

When considering a total roof replacement, reflective shingles are the best option. These shingles are usually made from gray or chipped marble and spread into an asphalt base. They reflect solar energy more efficiently than traditional shingles because they contain specially coated granules.

Kyle Houck


About the Author

Kyle Houck is the President of Eastern Exteriors, LLC.

Eastern Exteriors, LLC is a family-owned company based in Frederick, Maryland. From new roof installation and roof repairs by professional roofers to premium window installations and expert siding installation, we are a full-service exteriors and contractor roofing company. And, if storms blow your way, we’ll be there to assess and repair the damage quickly.

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