VSI Adds Polypropylene Siding to Certification Program

September 16, 2010

WASHINGTON, Sept. 15 /PRNewswire/ -- After more than a decade of successfully certifying vinyl siding through the VSI Product Certification Program, the Vinyl Siding Institute, Inc. (VSI) is pleased to announce certification for qualified polypropylene siding to the industry performance standard. Through VSI's Program, polypropylene siding manufacturers can certify that their products meet or exceed the ASTM D7254 Standard Specification for Polypropylene (PP) Siding, as verified by an independent quality control agency, Architectural Testing, Inc. (ATI). ATI conducts a series of rigorous tests, unannounced inspections of polypropylene siding plants, and quality control plan reviews to ensure polypropylene siding certified through VSI's Program will: -- Weather the elements over time without cracking, chipping, flaking, pitting, or peeling. -- Meet impact resistance requirements. -- Withstand wind pressures equivalent to 110 mph or more. -- Demonstrate flame spread performance equivalent to or better than wood materials commonly used in building construction. A complete list of certified polypropylene siding is available at www.polypropylenesiding.org.

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