Cullen Technical Guide 2024

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HV–GR Hi–Vis Gripper

Patent Number GB2511155

External Wall Application

Party Wall Application

Install the I–Joists onto the masonry at required centres ensuring that they each have a minimum bearing onto the masonry of 90mm.

Install the I–Joists onto the masonry at required centres ensuring that they each have a minimum bearing onto the masonry of 90mm.

Mortar cavity side to achieve air tightness performance.

Mortar cavity side to achieve 60 minute Fire Rating and air tightness performance.

Single Ply

Double Ply

Bend and push fit

Place the Hi–Vis Gripper onto one end of the I–Joist to be built into the masonry. Push fit until it is fully engaged. Ensure it tightly abuts the I–Joist web and that both ends of the Hi–Vis Gripper tightly abut the I–Joist flanges.

Second Hi–Vis Gripper abuts first to provide an air tight seal.

Installation of the Hi–Vis Gripper is now complete.

Double I–Joists must be securely joined with I–Clips.

Installation Instructions

Stage 1

Stage 2

Stage 3

Stage 4

Stage 5

Install joists and deck as per manufacturer’s instructions. Select the correct Hi–Vis Gripper to suit joist width, fold on its easy fold hinges and push onto the end of the joist, no additional fixing required.

Lay mortar bed between joists, add mortar to perp end of block. Install block between joists tight to face of Hi–Vis Gripper.

Add mortar to void created between block, joist and Hi–Vis Gripper and flush up.

Ends of joist can be inspected to ensure correct installation before external brickwork built up.

No mortar or mastic required to internal face. Hi–Vis Grippers visible for post installation inspection prior to plasterboard being installed.

The latest most up to date version will always be online and not in print or in downloaded pdf.

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Technical support 01592 771132 / technical@itwcp.com / https://www.itwcp-offsite.co.uk

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