About Us

The Coalition for Sustainable Roofing (COSUR) represents companies that manufacture a wide variety of roofing products. Carlisle Construction Materials, Holcim Building Envelope, and Johns Manville are long-standing North American-based building product manufacturers. Their extensive experience and technical insight, derived from manufacturing a broad range of roof assembly components (including highly reflective roofing), offers unique perspectives into holistic roof system design and sustainable roof assemblies. COSUR works closely with roofing architects, roof consultants, and roofing contractors and emphasizes holistic approaches to roofing solutions under the umbrella of sustainability, promoting resilience, recyclability, energy efficiency, urban heat island mitigation, and decarbonization.

COSUR is a non-incorporated coalition; Ellen Thorp provides management services for the Coalition.