Westlake’s exteriors and pipe and fittings businesses make some of the world’s most prevalent items, including residential siding,?pipe and fittings for various water, sewer and industrial applications; profiles for windows and doors; fence and decking; along with films for various inflatables, wallcovering, tapes and roofing applications. Our products are sold and marketed under the trade names DaVinci Roofscapes, NAPCO Pipe & Fittings, Royal Building Products and Westech Building Products.
