The NSF/ANSI 347 standard provides a rigorous framework for architects, specifiers, and building owners to identify roofing products with reduced environmental impacts. The 2021 version represents the latest consensus-based updates from the NSF Joint Committee on Sustainable Single Ply Roofing . Key Evaluation Criteria
Measures operational efficiency, including water use, energy consumption, and waste management. nsfs 347 2021
Products are assessed based on their performance across five major categories: The NSF/ANSI 347 standard provides a rigorous framework
Focuses on the service life and resilience of the roofing system. including water use