Vista VE4 Light Duty Housing Ties 225mm S/Steel for Cavity 76-100mm Bag of 50 BS EN 845-1

These products act to secure two leaves of a cavity wall to each other, allowing them to act as one structurally. A cavity tie usually incorporates some mechanism, (usually a change of shape) to discourage moisture moving across the tie. Most cavity ties are available with a dedicated clip to secure insulation (usually in sheet form) within the cavity.