Showing results 1 - 11 of 11
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A cool roof utilizes materials with high solar reflectance and thermal emittance to reflect solar energy and reduce heat gain to the home
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Right – This metal roof is being coated with a cool (high SRI) coating to reduce solar heat gain
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Roof-mounted solar panels shade the roof below them (left), significantly reducing the roof’s surface temperature (thermal image on the right - yellow region under the panels is cooler than the red and white region on the exposed portion of the roof)
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Side by side comparisons of standard roofing colors (top row) and cool colors (bottom row) shows that solar reflectance (R) can be reduced significantly using special coatings with almost no change to the color
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The cool shingles on the right have been coated with a ceramic coating to reflect near-infrared radiation, resulting in a cooler roof as shown by these thermal images (red and yellow are hotter, green and blue are cooler).
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The existing dark tile roof on this home (top photo) was covered with a light -colored coating on day 6 (middle photo), resulting in a significant reduction in attic temperature and cooling energy consumption (bottom)
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The white TPO membrane roof on the row house on the right performs extremely well at reflecting solar energy and maintaining cool surface temperatures while the black EPDM membrane roof on the left heats up rapidly in the sunlight
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This home uses light-colored standard paints and finishes on siding and roofing materials to reduce cooling loads without adding material cost.
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This search for metal roofing products on the CRRC Rated Roof Products Directory highlights the initial and 3-year aged SRI values for each product
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This simplified decision tree can help a homeowner or contractor assess how appropriate a cool roof or wall will be for a particular home