One obvious fix to meet code and reduce cooling load in buildings would be to coat a dark colored or black rooftop with a light color reflective coating. Chicago’s 2009 Energy Code requires a .72 initial, OR .50 aged reflectivity of roof surfaces. Where ballasted existed before, it also can be used as a surfacing under the code. Covering the roof membrane reduces the amount of ultraviolet light that beats down on the roof membrane, possibly extending the roof life. One of the best energy saving paybacks is adding insulation to the roof assembly, but only to a point. Diminishing returns come into play on high insulation thicknesses. Chicago’s 2009 Energy Code requires a minimum R-20 insulation value. These rooftop actions on older roofs could add life to the roof and value through energy savingsto the building owner or manager.
Chicago has many gravel surfaced roofs and reflective surfaced roofs which have been installed by Chicagoland Roofing Council (CRC) contractors who have used workers trained at the world’s leading roofing industry education location, the Chicagoland Roofers Joint Apprenticeship Training Center in Indian Head Park, Illinois.<< previous 1 2 3 4 5 6 7 next >>
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