WideWrap is a new fiberglass duct wrap that comes in 5-foot widths. Unlike standard wrap that measures 4 feet, the product reduces labor and costs, and eliminates the need for additional fabrication. It also decreases job-site waste by up to 20 percent. The foil-scrim, kraft-faced flexible fiberglass insulation is ideal for rectangular and round ductwork. Cost: 18 to 32 cents per square foot. CertainTeed. 800-233-8990. www.certainteed.com.