Are cool roof shingles more expensive?
The cost premium for cool roofs versus conventional roofing materials ranges from zero to 5 or 10 cents per square foot for most products, or from 10–20 cents for a built-up roof with a cool coating used in place of smooth asphalt or aluminum coating.
Are cool roof shingles worth it?
The council estimates that a cool roof can save a homeowner 7% to 15% in cooling costs. Energy Star recognizes cool roof products that reduce peak cooling demand by 10% to 15%.
What are the benefits of a cool roof?
Cool roofs can:
- Reduce local air temperatures (sometimes referred to as the urban heat island effect)
- Lower peak electricity demand, which can help prevent power outages.
- Reduce power plant emissions, including carbon dioxide, sulfur dioxide, nitrous oxides, and mercury, by reducing cooling energy use in buildings.
Does spraying water on your roof cool house?
Yes, water on the roof will help cool it. Cooling with liquid water running off from a sprinkler is not efficient, but evaporative cooling from a small amount of water (like a periodic sprinkle) is very efficient. 1 gallon of water consumes 8000 BTU as it evaporates.
What color roof is most energy efficient?
“Cool” roofs are lighter in color than traditional black asphalt or dark wood shingles and save energy by reflecting light and heat away rather than absorbing them. This is known as “the albedo effect,” and many studies have documented significant energy savings from simply lightening the color of a roof.
How do I stop my roof from heating up?
How to Beat the Summer Heat by Keeping the Roof Cool
- Grow a roof garden. One of the best ways to keep the roof cool is by growing your own rooftop garden with green grass and potted plants. …
- Paint the terrace white. …
- Add shade. …
- Go for heat-resistant flooring. …
- Install solar panels.