PRODUCTS

HV-GR
1/5

HV-GR

Hi-Vis Gripper

Patent Code: GB2511155

The Hi-Vis Gripper is a build-in detail for I-Joists into masonry reducing air leakage at the joist end. The Hi-Vis Gripper can be used on both
external and party walls.

  • Suitable for I-Joist only
  • Air tightness (in compliance with approved Part L), supporting sustainability initiatives - 68% more efficient than NHBC end seal detail requirements
  • Bright colour makes the product easy to identify and visible for post-installation inspection
HDPE

High Density Polyethylene

EPD (Environmental Product Declaration) is a verified document that reports a product’s environmental impact across its lifecycle. View EPD

Service Class Service class defines the environmental and use conditions a construction product is designed to withstand during its intended lifetime.

NHBC (National House-Building Council) sets standards and provides warranties and inspection services for new homes in the UK. NHBC Approved

Quick and simple installation

No mastic seal required

No fixings required

Push fit installation

Stops mortar from slumping

Simplified range improving product suitability

Range of striking colours and unique design enables high visibility for post installation inspection

Easy to install – no nailing required or need to trim joists to fit, saving time on site

Mastic not required to seal I–joist perimeter, reducing site costs

Suitable for joists with either 90 or 100mm bearing without protruding into cavity

Bend and push fit with no mortar to front face speeds up install

A major contribution to compliance with air leakage

In line with existing building practice

Easy access

Quick and effective

Visual quality check from outside

Meets NHBC technical requirements

Part E: Compliant with the requirements of Appendix A of the Robust Details Part E Handbook

Assessed to BS ISO–TR12470:1998 for 60 minute fire requirements

No fixings required.

  • No fixings or mastic seal required
  • Additional parallel and perpendicular restraint may be required
  • Double I–Joists must be securely joined with I–clips

To learn the quickest and most efficient way to install the HV-GR, watch our selection of installation videos.

Can be used with single, double or triply ply I-joists.

Installation Guidance

Explore the step-by-step HV-GR installation videos

The video demonstrates best practice on site, highlighting each stage of the installation process to help ensure accuracy, consistency, and compliance during fitting.

Support you can rely on

Privacy Overview

This website uses cookies so that we can provide you with the best user experience possible. Cookie information is stored in your browser and performs functions such as recognising you when you return to our website and helping our team to understand which sections of the website you find most interesting and useful.