SPRI, Inc., the trade group representing manufacturers of single-ply roofing systems and materials, recently added an Environmental Product Declaration section to its website, the organization announced in a July 26 news release.

The group published updated EPDs for TPO and EPDM membranes from SPRI members Carlisle Construction Materials, Holcim Building Envelope, IKO Industries, and Johns Manville. 


Environmental Product Declarations are standardized documents that outline a product’s environmental impact from cradle-to-grave. Declarations are based on the ISO 14025 standard along with the ISO 14040 standard for a Life Cycle Assessment and provide a quantitative basis for comparison. 

The trade group said that EPDs are used to encourage demand for products with lower environmental impact using accurate and verifiable information. 

Unlike detailed LCAs, which often contain detailed and sensitive information, EPDs do not include specific product ingredients, detailed production processes or other proprietary information.

“As the commercial roofing industry’s leading authority on single-ply roofing, it’s critically important that SPRI remain at the forefront of the industry by offering the latest technical information in the industry,” said Linda King, executive director of SPRI. “This new section on our website and the updated EPDs are very important to specifiers and applicators looking for detailed environmental product information.”   

For the newly posted EPDs, production data for 45-, 60-, and 80-mil TPO was provided from seven manufacturing sites nationwide. Production data for reinforced 45-, 60-, and 75-mil EPDM was provided from three manufacturing locations, and the data for non-reinforced 45-, 60-, and 90-mil EPDM was provided by four manufacturing locations. 

All three newly updated EPDs are available under the “EPD” heading on the SPRI website.

For additional information, visit SPRI.org.