DryFix wall ties are power driven directly into both leaves, via a small pilot hole of around 6mm diameter.
OR
RetroTies are driven into a 4.5mm pilot hole in the far leaf, via a clearance hole in the near leaf into which they are bonded with
PolyPlus resin.
OR
ResiTies are resin bonded into a 10mm hole in both leaves.
View video of replacing cavity wall ties. Click the bottom right sysmbol for full screen view.
Visit the downloads section for further detailed information