This page provides important data for architects, builders, and specifiers, emphasizing why XPS is the preferred choice in thermal insulation.
Technical Bulletins
See XPSA’s bulletins regarding Canadian LTTR Compliance and RSI Design Values.
NFPA 285 & ASTM E119
Read the engineering extension letter for DuPont™ Styrofoam™ XPS, Kingspan® GreenGuard® XPS, or Owens Corning™ FOAMULAR® XPS foam plastic insulation for Brick Industry Association (BIA) Thin Brick Exterior Wall Systems, and NFPA 285 and ASTM E119 Compliant Wall Assemblies.