AU-1 Liquid-Applied Flashing

High-Performance Elastomeric Liquid Flashing Membrane

AU-1 Liquid-Applied Flashing is a single-component waterproofing barrier formulated for permanent protection against moisture intrusion around building openings.  It can be rolled, brushed or troweled on with no primer necessary, offering exceptional adhesion to most common building substrates./uploads/2023/09/lower-res-laf-application-ad.jpg

AU-1 Liquid-Applied Flashing meets the performance requirements of AAMA 714-19, providing an eco-friendly solution with easy application and effortless cleanup with just soap and water. It's versatile, compatible with green concrete, stucco, building envelope systems, and more.  It's green, as a Styrene Butadiene Resin membrane, AU-1 Liquid Flashing is water-based and VOC compliant in all 50 states, and contains no isocynates or phthalates.  AU-1 Liquid-Applied Flashing performs by creating a lasting barrier, ensuring protection from the elements and maintaining its outstanding adhesion for the lifetime of the building.

  • Meets the performance requirements of AAMA 714-19
  • Provides a breathable, waterproof seal
  • No mixing required
  • Weather resistant
  • Soap & water cleanup
  • Outstanding adhesion
  • Compatible with Stucco finishes with no primer
  • Can be applied to green concrete
  • Apply by brush, roller or trowel
  • 18-month shelf life
  • Available in 1 Gal & 5 Gal pails



  • Masonry
  • Aluminum
  • Concrete
  • OSB
  • Exterior Gypsum
  • Stucco
  • Building Envelop Systems
  • Vinyl
  • Wood
  • Brick