As homeowners get ready for warmer weather, CertainTeed Corporation, North America’s largest brand of building products, suggests they consider expanding their living areas with its portfolio of outdoor products — Living Spaces(TM); Creating Great Outdoor Rooms(TM). With its decking, siding, soffit, roofing, railing, exterior trim and fence products, CertainTeed provides homeowners with everything they need to create a unique and beautiful setting where they can enjoy living on the outside.