Westlake’s building products businesses make some of the world’s most prevalent items, including residential siding, trim and molding; 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 NAPCO Pipe & FittingsLASCO FittingsDimexRoyal Building Products  and DaVinci Roofscapes.  Recently, Westlake acquired Boral North America's building products business including:  stone, roofing, windows, siding and trim.  

In North America, our polyvinyl chloride (PVC) resin is utilized by several Westlake companies. Westlake’s building products… Read More
Westlake engineers and manufactures rigid and flexible vinyl compounds. Our rigid vinyl compounds are used in a wide range of… Read More