DryFix Remedial Helical Wall Tie 8mm
DryFix remedial Helical wall Ties are available in 195mm, 220mm, 245mm, 270mm & 300mm lengths.
DryFix Helical Wall Tie is installed using a proprietary setting tool that is used with an SDS-Plus shank hammer drill to drive and countersink the tie.
The helical design allows the tie to be driven quickly and easily into a pre-drilled pilot hole. As the tie is driven into the substrate, the fins of the tie undercut the masonry to provide an expansion-free anchorage that will withstand tension and compression loads.
Once installed the Helical Drive Tie provides a mechanical connection between a masonry façade and its backup material or between multiple widths of brick.
In general terms the fixing densities for remedial wall ties would be the same as new build – 2.5 per m² or 450 mm vertically and 900 mm horizontally in a domino five pattern. This density would, however, be subject to on site testing to ensure that the required tensile loadings are being achieved.
To Install Helical Drive Ties you will need to drill a 5.5 – 6.5mm pilot hole into the substrate. Minimum embedment is 70mm.
Grade 304 Stainless Steel.
DryFix Helical Remedial Wall Ties are ideal for walls with a render finish.
|Wall Tie Length||Minimum Cavity||Maximum Cavity|