York Seal is a proprietary, self adhering composite membrane, uniquely combining high strength, low temperature adhesion and high temperature stability into a superior barrier to limit air and moisture transmission.  A tough 5 mil (0.1mm) high density polyethylene film forms a resilient barrier to physical damage.  The proprietary, modified asphalt offers the waterproofing effectiveness of traditional modified bitumen products with low temperature adhesion.

Key Properties

  • Waterproof and Impermeable to Moisture
  • Superior Adhesion - Fully Bonded
  • Cross Laminated Polyethylene Facer
  • Low Temperature Adhesion and Flexibility
  • Impermeable to Air, Moisture Vapor and Water

Uses / Benefits

  • Through-Wall Flashing
  • Used to prevent vapor and air transmission through:
    - Masonry curtain walls
    - Construction Joints
    - Fittings around doors and windows.
  • Acceptable surfaces include:
    - Plywood
    - Lumber
    - Precast concrete
    - Metal
    - Exterior gypsum
    - Concrete block

Available in Sizes

75' Rolls
12", 18", 24" & 36" Widths

Associated Products / Accessories