Introduction A reflective insulation typically performs as a system that incorporates one or more highly reflective (low emittance) surface(s) adjacent to an enclosed air space. Reflective insulations are typically installed on the outside of a duct using spacers to create an enclosed air space between the outer surface of the duct and the low emittance …
The effect of attic radiant barriers on the temperatures of roofing materials is the subject of a recently completed RIMA-I study. Dark roofing material (shingles) can absorb as much as 95% of incident solar radiation and, as a result, will increase in temperature above the surrounding air temperature. The temperature reached by a roof in …