Did you know?
Did you know that on a sunny summer day, the temperature of asphalt shingles can exceed 70°C? The snapshot below shows the CCHT Test House roof temperatures (°C) at 2 pm on August 13th, 2009. On this sunny summer day, the outdoor temperature was 30°C, but the surface of the shingles on the south side of the roof reached a temperature of 76°C. As a result, the air in the attic was heated up to 48°C. It’s a good thing the attic is insulated with RSI 8.6 (R49) insulation to help keep this heat out of the home!
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