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Abstract
FSEC measured summer attic themral performance of 6 roofs at a heavily instrumented test site. The data were collected over the ASHRAE definition of summer (June-Sept) to compare cooling season thermal or roofing systems. Six differeing roof types were evaluated with variations in color, ventilation, roof mass aned the use of radiant barriers. the tests show that roof system reflectivity greatly influences atttic summer temperatures. Two white roofs systems outperformed the other options. Another large improvement comes from greater roof mass; tiled roofs performed better than those with asphalt shingled roofs. An increased attic ventilation rate improved the effectivenss of an attic radiant barrier. Of the evaluated options white tile roof best controlled attic heat gain.
FSEC measured summer attic themral performance of 6 roofs at a heavily instrumented test site. The data were collected over the ASHRAE definition of summer (June-Sept) to compare cooling season thermal or roofing systems. Six differeing roof types were evaluated with variations in color, ventilation, roof mass aned the use of radiant barriers. the tests show that roof system reflectivity greatly influences atttic summer temperatures. Two white roofs systems outperformed the other options. Another large improvement comes from greater roof mass; tiled roofs performed better than those with asphalt shingled roofs. An increased attic ventilation rate improved the effectivenss of an attic radiant barrier. Of the evaluated options white tile roof best controlled attic heat gain.
Date
0/1998
0/1998
Author(s)
D Parker; J Sherwin
D Parker; J Sherwin
Page(s)
Source
Florida Solar Energy Center
Florida Solar Energy Center
Keyword(s)
radiant barrier; thermal performance; FSEC; Florida
radiant barrier; thermal performance; FSEC; Florida