| http://www.w3.org/ns/prov#value | - While the reflective and emissive properties of a roof are most important for its coolness, other factors such as insulation, roof orientation and roof pitch contribute to a building???s overall thermal efficiency. ???Building owners should never agree to a roof based solely on the fact that it???s a white roof,??? says Jared Blum, president of the Polyisocyanurate Manufacturers Association and a
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