The sustainable design movement aims to reduce the negative impact of residential and commercial buildings on the environment. SABIC Innovative Plastics' growing portfolio of Lexan polycarbonate (PC) multiwall sheet products are contributing to this movement and strengthen sustainable building designs by increasing energy conservation, improving working/living environments and promoting recycling. Lexan sheet solutions can help architects, builders and contractors tap into the 'green' building market, a $12-billion sector and a bright spot in the current construction industry slump. SABIC Innovative Plastics offers its customers a broad portfolio of Lexan multiwall sheet solutions for roofing, cladding and glazing. Sustainable design is the practice of creating healthier and more resource-efficient models of construction, renovation, operation, maintenance and demolition. Plastics can enhance sustainability in a variety of ways, including energy conservation and the potential for recyclability. One key focus of sustainable design is energy efficiency. For example, builders must balance the increasing demand for designs that admit large amounts of light with concerns about energy costs. The use of specialized PC glazing instead of traditional glass can achieve both.