- The problem with dark roofs: The temperature outside may be 95 degrees, which is plenty hot, but your dark roof is conducting a much higher temperature down at you and your family, making the rooms below hotter and making the air conditioner work harder, Barbara Collins points out in her answer to the Ask A Pro question "NYC has a 'cool roof' program. Is there a white paint or coating to make my roof cooler?" In New York City, she notes, a dark-colored asphalt roof can reach 150 to 175 degrees on a hot summer day. This not only increases the energy needs of your home, it also contributes to the heat island effect in urban areas.
- The benefits of cool roofs: A cool roof, on the other hand, can be 50 to 60 degrees cooler than a conventional dark-colored roof, reducing the cooling load on your home, saving energy, and reducing utility costs. By decreasing the solar gain and heat retention of your home, a white roof also increases its comfort and reduces the heat island effect that your home’s dark roof contributes to.
- How to cool your roof: The easiest route is to slap a cool roof coating onto an existing roof. If you’ve got a flat-top roof. We suggest to use DURACOOL I.
Cool roofs refer to roofs that are cool in both senses of the word. Lighter in color than traditional black asphalt or dark wood shingles, cool roofs save energy by reflecting light and heat away rather than absorbing both. This is known as the albedo effect, and study after study in the last few years has documented significant energy savings from simply lightening the color of a roof.
Getting ready for the International Roofing Expo in Orlando Florida February 17-19, 2016 !
Don't miss the 2016 IRE where you can view, touch, examine and compare hundreds of products in real-time. Visit us in booth 1008 next to Nascar booth. Also check our product in a Product Showcase!
Green building is the practice of increasing the efficiency with which buddings use resources.
This works by:
White roof coatings provide three key attributes as part of a roofing system:
1. Helps shed water and keep interiors dry.
2. Helps reduce cooling costs for buildings and reduce interior temperatures on buildings with no cooling units.
3. Protects and prolongs the roof system life cycle.
White coatings can be applied to practically any roofing surfaces, membranes, or substrates. They are commonly applied to sprayed polyurethane roofs to provide waterproofing. They can also be applied to metal roofs, single-ply rubber roofs and modified bitumen roofs. They can even be applied to certain kinds of asphalt roofs. It is important to establish compatibility between the white coating and the underlying roof membrane.