Foam Plastic Insulating Sheathing (FPIS) Products are offered in three types:

  • Expanded Polystyrene (EPS) - ASTM C578
  • Extruded Polystyrene (XPS) - ASTM C578
  • Polyisocyanurate (Polyiso) - ASTM C1289

FPIS products come in many thicknesses to accommodate almost any end use and can be used along with approved tapes as part of a WRB system. Learn proper installation techniques and download an installation checklist using the links below.

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