The Effects of Infrared-Blocking Pigments and Deck Venting on the Energy Performance of Stone-Coated Metal Roofs

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Prepared for the U.S. Department of Energy Buildings Technology Program and the Metal Construction Association (MCA) by William A. Miller, Ph.D. of Oak Ridge National Laboratory (ORNL), this 54-page report shares the findings of a study seeking to document the potential energy efficiency of stone-coated metal roofs—employing infrared-blocking color pigment technology and underside venting—compared to traditional deck-nailed asphalt shingles. One of the conclusions drawn by the study, which used full-scale test mockups, was that stone-coated metal roofs employing infrared-blocking color pigment technology and underside venting reduced the flow of heat into the conditioned space beneath the roof deck by 70% when compared to asphalt shingles.

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