DryPro have the expertise to access the wall ties, detecting a wall cavity fault and we can provide the most appropriate solution to fix it.
Wall ties are used to join the internal and external walls of a cavity wall & are installed during construction. They are a critical & essential with regards to the stability of masonry. Cavity wall ties are prone to corrosion and if they are not properly protected, moisture can lead its way along the metal and cause oxidisation.
This can have a number of repercussions for the homeowner, for example, expansion of the metal can cause both horizontal & vertical cracking in the brickwork, the cracking (if left unattended) can result in the destabilisation of the wall.
TYPES OF RETROFIT & REMEDIAL TIES
Resin or Grouted- These are normally pushed into a pre-drilled hole that has been filled with resin or grout. Once in place, more resin or grout is pumped down through the tie to fill around the end.
Mechanical- These types of ties are inserted into a pre-drilled hole and generally feature a sleeve that expands when the tie is screwed up tightly.
Helical Screw- These ties look very similar to a long corkscrew and feature quite a course, wide thread. They are screwed into the walls in much the same way as a standard wood screw.