Grace Construction Products will showcase its extensive line of air barriers at Construct 2012, including Perm-A-Barrier VPO and Perm-A-Barrier Aluminum Wallgrace1 Membrane. The company’s complete portfolio is known for providing powerful protection for the building envelope from air and moisture. This full range of products has been engineered to accommodate any design need and installation preference, and consists of permeable and impermeable, fluid-applied and sheet-applied products, sold under the brand name Perm-A-Barrier®. For more information, visit