Perm A Barrier NPS (non-permeable, primerless)

Perm-A-Barrier® NPS (Non Permeable Sheet) is an NFPA 285 compliant, primerless self-adhering vapour impermeable air barrier membrane. Its specially designed adhesive eliminates the need to prime the surface of most construction materials, saving installation time and material cost. Perm-A-Barrier® NPS provides superior protection against the damaging effects of air and water ingress on building structures.

FEATURES AND BENEFITS

  • Primer-less self-adhered sheet—reduces installation time by up to 40%
  • Fire Resistant—meets NFPA 285 as part o various wall assemblies with foam plastic insulation
  • Fully bonded—transmits wind loads directly to the substrate
  • Waterproof and virtually impermeable to moisture—virtually impermeable to the passage of liquid water and vapour
  • Air tight— Protects against air passage and associated energy losses.
  • Meets ASTM E2357 standard as required by IECC 2012
  • Flexible—accommodates minor settlement and shrinkage movement
  • Controlled thickness—factory made sheet ensures constant, non-variable site application
  • Aggressive, conformable adhesive—allows self-sealing around mechanical fasteners
  • Wide application window— primerless application at surface and ambient temperatures of 25°F (-4°C) and above.
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