Watertight Expansion Joints and Construction Sealants by EMSEAL

Selection Guide: Roof

Roof expansion joint cover featuring dual sealing, dual anchoring, dual level roof membrane integration and roof-to-wall closure transitions.

Roofjoint Roof Expansion Joint EMSEAL


  • High movement
  • Redundant sealing and fastening
  • Double-level roof-membrane integration flanges
  • UV-stable


RJ-0200: 2-3 inches (50-75mm)
RJ-0400: 3-5 inches (75-125mm)
RJ-0600: 5-7 inches (125-175mm)
RJ-0800: 7-9 inches (175-225mm)

RJ-0200: 2 1/2 inches (60mm)
RJ-0400: 5 inches (125mm)
RJ-0600: 7 inches (175mm)
RJ-0800: 9 inches (225mm)

Garden Roof Expansion Joints Emseal Hydrotech


When Emseal’s Roofjoint product is used in conjunction with Hydrotech’s Monolithic Membrane 6125® (MM6125®) waterproofing/roofing membrane, Hydrotech can provide a true single source Watertightness Warranty for up to 20 years.


  • watertight tie-in to MM6125 hot applied rubberized asphalt waterproofing membrane
  • Redundant sealing across the joint opening
  • Allows drainage across the joint opening
  • Redundant dual-level roof-membrane integration