 TOLEDO, Ohio--BUSINESS WIRE--The Insulation business of Owens Corning NYSE: OC has earned the National Preferred Partner Award from David Weekley Homes 17th annual National Preferred Partner Survey. This is the ninth consecutive year Owens Corning Insulation, together with its network of contractors and distributors, has been recognized for its innovation, quality, customer service and performance by the privately-held U.S. homebuilder. In a dynamic year for our industry, our team has rem 