Do Cool Roofs Work?

Cool roofing systems save energy bills by reflecting heat away from the building.

What is a cool roof system?

Many homeowners and businesses have begun to choose cool roofs because they are eco-friendly and energy efficient. But just what do we mean by “cool roof”?

Cool roofs are a type of roofing system designed with a high ability to reflect sunlight, whether visible, infrared or ultraviolet. This high reflectivity reduces heat transfer and helps cool your building. These roofs can be made using highly reflective paints or highly reflective tiles or shingles or with sheet coverings. While standard roofs can get as hot as 150 degrees in the summer, cool roofs can reduce that heat by 50 degrees or more, which saves on air conditioning costs.

What are the benefits of a cool roof?

Cool roofs have several benefits over standard dark roofs (90% of all roofs in the U.S. are dark roofs). Not only do cool roofs benefit individual buildings, but they are also better for the environment than regular roofs.

Coof roof benefits

Here are some ways a cool roof benefits property owners, as well as the environment.

  • Decreases air conditioning usage and reduces energy bills.
  • Improves indoor comfort in non-air-conditioned spaces like garages.
  • Decreases roof temperature and can help preserve your roof from damages caused by exposure to sunlight.
  • Reduces urban heat island effect, or the trapped heat build-up common to large cities.
  • Lowers energy demand which can help prevent brownouts and blackouts, especially in large urban areas.
  • Cuts down on power plant emissions detrimental to the environment such as carbon dioxide and sulfur dioxide.

With all these benefits, why wouldn’t you want a cool roof? Hellenic Roofing & Construction  is your source for cool roofing in Spring, TX. See how we can improve your energy efficiency with cool roofing by calling 832-704-2817.

What color roof is most energy efficient?

When you are selecting a new roof for your home or business, you may want to choose a lighter color for your roofing system if you are interested in greater energy efficiency. While almost every roofing system today, from asphalt shingle to metal and tile comes in a variety of colors and styles, the darker your roof, the hotter it will get. Because of the material, it’s made from, asphalt shingles tend to be a little darker than most. While white tends to be one of the cooler choices, you aren’t limited to just whites or gray. You can get colors like yellows and tans that are also cool or you can choose reflective paints for metal roofs in almost any color.

Not all cool roofs are white, but white is the most common color for a cool roof.

Does a white roof save energy?

White roofs are probably the most common color for cool roofs. White roofs, like other cool roofs, will help you save on energy bills. White coating reflect as much as 90% of sunlight and can save you anywhere between 10% to 40% on energy bills. While white roofs generally benefit those living in hotter climates, they can also save energy for those living in colder climates as well

How much is a cool roof?

As with most roofing systems, costs will depend on your location and the type of roofing system you put into place. For some homeowners and for commercial roofing, a cool roof coating may be the best option. Typically cool roof coatings will cost anywhere between .75 cents to $1.50 per square foot for low-sloped buildings. Many commercial single-ply roofing systems are cool roofing systems and can typically cost anywhere between $1.50 to $3.00 per square foot. Of the roofing leads and inquires we get for this particular niche (cool roofing), most are pleasantly surprised by our pricing options. Hellenic Roofing & Construction provides the most cost-effective cool roofing solutions in Spring, TX.

Cool roof for hot climate

Cool roofs are extremely valuable for hot climates. If you live in an area with hot summers and usually mild winters like Texas, you may want to consider a cool roof. Most types of roofing systems today can be made into cool roofs, but some of the most energy-efficient styles include terracotta and slate tiles for both residential and commercial buildings. For commercial structures with low slope roofs, single-ply systems like EPDM work really well in hot climates. Metal roofs because of their high reflectivity, surprisingly, are good in hot climates.

Cool roof or green roof

When you are choosing a roof, you have several options available for improved energy efficiency. If you are also interested in environmentally friendly roofing systems, you may want to choose a cool roof or even a green roof. Cool roofs use reflective materials in their design to keep heat away from the building, while green roofs use a layer of plants to absorb heat for the plants which keep heat from transferring to the rest of the building.

While both effectively manage energy efficiency, cool roofs may cost less to install than green roofs. Green roofs may also require a little more maintenance since the vegetation has to be watered, fertilized, and weeded. In some areas, an irrigation system may need to be installed as well. On the other hand, in certain parts of the country, cool roofs are less effective, especially in cooler regions.

Cool roof energy savings

In hot climates, especially, cool roofs are ideal for energy savings. As mentioned above, some roofs like white roofs will save you anywhere between 10% to 40%. Some areas may also rebates and incentives for installing a cool roof. With cool roofs in place, you may consider putting a smaller HVAC system in place.

Learn more

If you are interested in cool roofing in Spring, TX and want to learn more, give Hellenic Roofing & Construction a call at 832-704-2817.