The Impact of Above-sheathing Ventilation on the Thermal and Moisture Performance of Steep-slope Residential Roofs and Attics
نویسنده
چکیده
Field studies were conducted on several attic assemblies having stone-coated metal shake roofs with and without infrared blocking color pigments (IrBCPs) and with and without above-sheathing ventilation. The combination of increased solar reflectance and above-sheathing ventilation reduced the heat flow penetrating the attic floor by 70% as compared with the heat flow penetrating the attic floor of a roof with conventional asphalt shingles. The venting strategy also eliminated the heating penalty associated with a reflective roof as compared with that of a dark heat-absorbing shingle roof.
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تاریخ انتشار 2006