Royston? 10A Waterproofing Membranes

Royston? 10A Waterproofing Membrane

Royston? 10A Waterproofing Membrane is a prefabricated reinforced laminate consisting of an impregnated woven fiberglass, high strength inner core sandwiched between two layers of a polymer-modified bitumen. A unique 3- inch leading edge guarantees a positive compound to-compound seal at the overlap. Transverse seals are easily made using Royston? Flex-Flo Adhesive Sealant (FFAS), Royston? 104 Caulkable Mastic (104CM), or via heat sealing.


  • Adhesive to adhesive bond creating a water-tight seam
  • Factory-made sheet ensures consistent mil thickness
  • Allows for minor amount of movement related to thermal expansion/contraction, settlement or shrinkage
  • Eliminates dangers of hot liquids
  • Increased tensile strength and puncture resistance



  • General Purpose Waterproofing Membrane


  • Bridges/Highways/Tunnels/Airport Runways
  • Balconies Parking Garages


  • Concrete
  • Asphalt
  • Steel
  • Wood

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