ASCEND® Composite Cladding System from Alside® Wins Coveted 2021 Best of IBSx™ Award for Most Innovative Building Material ASCEND Combines Beauty, High-Performance, Easy Installation and Superior Value for Builders, Remodelers and Homeowners News provided by Share this article CUYAHOGA FALLS, Ohio, Feb. 16, 2021 /PRNewswire/ -- Alside ®, a leading manufacturer of exterior building products, received the prestigious "Most Innovative Building Material" Best of IBSx Award for its ASCEND ® Composite Cladding System. The National Association of Home Builders (NAHB) named the winning products during its inaugural Best of IBSx Awards for the 2021 NAHB International Builders' Show virtual experience (IBSx) that showcased the latest products, technology and trends and attracted the industry's top builders, remodelers, dealers, interior designers and contractors.