Expansion Joints

Depending on the size of the building or project; architects and builders provide expansion joints across areas like split slabs, roofs, exterior walls, below grade / basements, podiums, interiors and so on. These joints are required to safely absorb temperature induced expansion and contraction or construction materials, absorb vibration and hold parts together or to allow movement in case of ground movement. However, it is important to seal these gaps from moisture, heat & environmental forces, without affecting the purpose of the gap. Gaps include Expansion Joints, Structural Joints, Control Joints, Perimetral joint across vertical and horizontal surfaces.

GreenShield™ Expansion Joint Preformed Profiles & Tape (GS TPE EJ) are based on thermoplastic elastomer chemistry, designed for primary seal of high movement expansion gaps, suitable across various surfaces / substrates, providing water tightness, continuity of seal throughout changes in plane and direction including curves and corners, high degree of puncture resistance and elongation compared to traditional membrane based joints. Redundant adhering system provides double protection from water leakages.

How does
GS TPE EJ Profiles
& Tape help?

GS TPE EJ is used in waterproofing expansion joints across flat roofs, exterior walls, split slab decks, podiums, parking areas, basements; applied as exposed or covered below PCC:

  • Double flanged preformed profiles provide redundant sealing – complete waterproofing the expansion joint
  • Easily heat welds to TPO membranes used for waterproofing surrounding area
  • Excellent elongation of over 500%
  • Good abrasion and wear resistance, high puncture and tear resistance
  • Chemical resistant – resisting acids, alkalis, salt corrosion, bacteria, fungi


GS TPE EJ is applied over the concrete substrate, adhered with epoxy adhesives, overlapped for enhanced adhesion. Further finishing material and screed / PCC is overlaid on the system over the sides, whereas the gap is filled with backer rod, covered with PU sealant and covered with one side fastened metal plate for vehicular movement where required.

Application Examples

GS Products

  • GS TPE EJ 75
  • GS TPE EJ 250
  • GS TPE EJ 500
  • GS Adhesive
Scroll to Top