A typical building loses up to 25% of its heat through the roof. Industry-leading Elevate roofing and insulation systems by Holcim were thus instrumental in the construction of the world’s largest Passive House-certified office building: the Winthrop Center in Boston, USA.
Holcim delivered up to 40% better thermal performance compared to competitive products with its industry-leading Elevate™ ISOGARD™ polyiso insulation, which has the highest thermal efficiency per inch available on the U.S. market. Elevate™ UltraPly™ TPO SA membrane was also installed as part of the roofing system to provide a protective, waterproof barrier from driving rain and moisture. Winthrop Center also incorporates a well-insulated façade and an air-tight exterior building envelope.