VANCOUVER, British Columbia–(BUSINESS WIRE)–Saint-Gobain, through its building products subsidiary CertainTeed Canada Inc., has completed installation of a heat exchanger system on its industrial drywall board dryer at its gypsum facility outside Vancouver, British Columbia, which is expected to reduce the plant’s Scope 1 carbon dioxide emissions by nearly 15%. This project, the first of its kind for CertainTeed Canada, signifies a substantial investment towards increased efficiency, output a