Both locations manufacture products utilizing Flue-Gas Desulphurization synthetic gypsum. Gypsum wallboard products produced at these plants utilize only synthetic gypsum for their raw material source. The Tacoma plant has been certified for G-P Gypsum's DensGuard and ToughRock gypsum products and the Wheatfield plant has been certified for ToughRock wallboard. The paper that faces the company's ToughRock wallboard is 100 percent recycled.
The SCS Certification was awarded after a rigorous evaluation process that examined the percentage of recycled material used in the manufacturing of G-P Gypsum's products at these plants.
G-P Gypsum is a member of the U.S. Green Building Council, which has determined through LEED standard that synthetic gypsum is post-industrial content. Post-industrial content gypsum is recognized in LEED-NC 2.1 in the "Materials and Resources" category as recycled content and therefore eligible for credits. Specifying SCS certified products from G-P Gypsum may allow architects and building owners to qualify for potential award of credits toward a registered LEED building project.