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Cool roofs save energy.

Author(s) : AKBARI H.

Summary

Dark roofs are heated by the summer sun and, thus, raise the summertime cooling demand of buildings. For highly absorptive roofs, the difference between the surface and ambient air temperatures may be as high as 50 deg C, while for highly reflective roofs with similar insulative properties, the difference is only about 10 deg C. For this reason, "cool" roofs are effective in reducing cooling energy use.

Details

  • Original title: Cool roofs save energy.
  • Record ID : 1999-3137
  • Languages: English
  • Source: ASHRAE Transactions. 1998 Winter Meeting, San Francisco, CA.
  • Publication date: 1998
  • Document available for consultation in the library of the IIR headquarters only.

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