Duro-Last announced that it has achieved platinum certification under the NSF American National Standard for Sustainable Roofing Membranes - NSF/ANSI 347.
Matthew L. Wagner, S.E., Patrick E. Reicher, S.E., REWC, REWO and Patrick Olechno, P.E. have recently joined RRJ to strategically broaden the company's technical capabilities and management of the engineering consulting services.