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HV-GR High Vis Gripper

Product details

The new Cullen High Vis Gripper I-Joist end seal has been developed to answer the needs of architects and tradesmen. Low air leakage values of just 0.33 m³/h is achieved quickly and easily with its push fit and no need for mastic sealant. Bright colours makes the new Gripper highly visible to site inspectors.


  • Striking colours for easy identification during inspection
  • Air tight seal and air pockets for low thermal conductivity
  • Speedy installation with no need for mastic
  • Mortar shelves stop mortar slump
  • Just 3 parts to suit full range of joist widths
  • Made from 100% recycled material
  • Designed and tested for installation with a 90mm or 100mm bearing to ensure suitability for party wall constrution without any change from designs specified the superseded product

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For more information, visit our HV-GR Gripper microsite at 

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