EXTECH, Exterior Technologies, Inc. of Pittsburgh, PA recently designed and installed Macrolux IR multi-wall sheet, supplied by CO-EX Corporation, into the skylight glazing of the Theresa Banks Aquatic Center in Glenarden, MD. The 16mm thick Macrolux sheet offered high light transmission for great natural lighting along with good thermal insulation values to reduce the cost of heating the center, and at the same time increasing patron comfort.