Comfort and energy efficiency with cool metal roofs

Energy-efficient metal roofs, with cool coatings are at the forefront of innovation, helping to increase the efficiency of the building envelope. 

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September 25, 2015 |
Jeff Alexander
Comfort and energy efficiency with cool metal roofs

Solar reflective coatings on metal roofs have high thermal reflectance and thermal emittance, keeping rooftop temperatures down in direct sunlight.

Until recently, roofs were one of the least efficient parts of a building. Now, energy-efficient metal roofs, with cool coatings are at the forefront of innovation, helping to increase the efficiency of the building envelope.

Cool coatings are increasingly being applied to improve how well a building operates. The energy-saving advantages of these coatings include:

  • Lowering roof temperatures keeps air conditioning bills down
  • Helping to make indoor temperatures more even, boosting comfort
  • Recognized by green building certification programs, such as LEED and Energy Star and qualifies for some rebate programs
  • Mitigates the heat island effect by keeping ambient temperatures down
  • Boosting indoor air quality

Solar reflective coatings on metal roofs have high thermal reflectance and thermal emittance, keeping rooftop temperatures down in direct sunlight. Solar reflectance is the ability of the roof to reject solar heat, experiencing only a slight rise in temperature during intense sun exposure.  Thermal emittance is the measure as a ratio of how much heat energy can be re-emitted by a surface into the atmosphere in the form of infrared energy.

In both cases, higher values mean cooler roofs and lower cooling costs. Valspar scientists are proud to be at the forefront of innovation, boosting the efficiency of metal roofs. Select a long-lasting solar reflective Valspar coating if you want a cool roof for your next project. 

Jeff Alexander | Get Inspired: Color and Coatings

Jeff Alexander, Valspar’s VP of Sales for the Coil and Extrusion division has been with Valspar since 1997. He has an entrepreneur spirit and has thrived in building relationships with our customers. Jeff has fully immersed himself in all levels of the coating industry and enjoyed his term as National President at NCCA (National Coil Coating Association).  He is focused on continuing to educate customers on the paint industry.

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