Why is wall tie replacement required?

There are two reasons why a building may need to have its wall ties replaced:
  1. Wall tie failure
    Failure of cavity wall ties occurs when chemical reactions between metal and moisture, in the presence of oxygen, causes corrosion. This results in a build-up of brittle iron oxide layers which weaken and erode the steel tie-irons.
  2. Defective design or construction
    Instances where the built-in brick tie system has been incorrectly fitted, for example where ties have inadequate embedment depth or where an inadequate number of ties have been incorporated.

In both cases installation of a remedial wall tie replacement system will ensure that the outer wall is firmly secured to the buildings main structure, maintaining stability and allowing applied loads to be transferred and shared.

WALL TIE FAILURE AND COMMON SYMPTOMS >>