Replacement helical wall ties have been used to re-tie cavity walls for 25 years. The new CD Tie is the latest engineered upgrade, offering a quicker, easier and safer cavity tie replacement system.
Ties are hammered into undersized pilot hole in bricks and blocks using a low cost SDS setting tool. The helix angle forces the tie to cut self tapping threads in the masonry. The ties simply grip the bricks, blocks or concrete within the interlocking helical undercut.
The ties helix provides natural drip points to prevent water transfer across the cavity.
Benefits
The use of a small pilot bore limits brick damage when the drill bit breaks through into the cavity, thereby reducing risk of a cavity blockage.
The helical interlock connection exerts no expansive stress to the masonry. Loads are spread evenly along the helix, providing reliability of connection.
Patented twisting accuracy and the neat SDS driving arrangement combine to offer high performance and high speed replacement cavity wall ties that take less than 10 seconds to fit into each hole.
Quick Guide
