Cavity Wall Tie Failure

Cavity Wall Tie Failure from Elite Damp Proofing And Timber Treatments

By: Elite Damp Proofing And Timber Treatments  30/11/2009
Keywords: survey, Insurance Work, Wall Tie Replacements

Over the past decade, problems relating to cavity wall tie failure resulted in the need for a specialist nationwide industry dealing with the supply and installation of remedial products.

Wall tie failure is the inability of a wall tie to perform its function of tying two leaves of brickwork together. Failure is normally due to corrosion of the metal ties. This causes the integrity of the connection of the brickwork leaves to be put in question and therefore the overall structural stability of the wall.Problem:

Horizontal cracking in the brickwork, block work or render. This can indicate wall tie failure, but might also be connected with other types of movement. Consult a qualified Structural Engineer. If the cracks are thought to be a wall tie failure symptom locate the ties with a metal detector and either insert a Borescope through a small, drilled hole (usually 10mm diameter) or remove a brick or block. Check which type of tie you have - a 'fishtail' tie or a twisted wire tie. Fishtail ties can expand enough to cause cracks and must be removed, or isolated, after new ties have been fixed. Twisted wire ties cannot rust enough to cause cracks, so do not require 'isolation' or removal. In either case visible red rust or white rust indicates sufficient corrosion to require replacement. Remedy: Detect the existing ties with a metal detector, mark out a new diamond pattern and fit replacement ties and then isolate (with a Clan Sleeve, Rockwool or builder's foam) any 'fishtail' ties. Problem: Bulging of the wall. Danger: walls with bulges can collapse without warning - cordon off and immediately consult a qualified Structural Engineer.
Call Elite on 07794 541257 or 07853 262494

·         CAVITY WALL TIE FAILURE BARRY·
·         CAVITY WALL TIE FAILURE BRIDGEND·
·         CAVITY WALL TIE FAILURE CARDIFF·
·         CAVITY WALL TIE FAILURE CARMARTHEN·
·         CAVITY WALL TIE FAILURE COWBRIDGE·
·         CAVITY WALL TIE FAILURE CWMBRAN·
·         CAVITY WALL TIE FAILURE EBBW VALE·
·         CAVITY WALL TIE FAILURE GOWER·
·         CAVITY WALL TIE FAILURE LLANELLI·
·         CAVITY WALL TIE FAILURE LLANTRISANT·
·         CAVITY WALL TIE FAILURE MAESTEG·
.         CAVITY WALL TIE FAILURE MILFORD HAVEN.
·         CAVITY WALL TIE FAILURE NEATH·
·         CAVITY WALL TIE FAILURE NEWPORT·
·         CAVITY WALL TIE FAILURE  PENARTH·
.         CAVITY WALL TIE FAILURE PEMBROKE.
·         CAVITY WALL TIE FAILURE PONTYPRIDD·
·         CAVITY WALL TIE FAILURE PORT TALBOT·
·         CAVITY WALL TIE FAILURE PORTHCAWL·
·         CAVITY WALL TIE FAILURE RHONDDA·
·         CAVITY WALL TIE FAILURE SWANSEA·
.         CAVITY WALL TIE FAILURE TENBY. 
·         CAVITY WALL TIE FAILURE TONYPANDY· 
·         CAVITY WALL TIE FAILURE  WALES· 



Keywords: Insurance Work, survey, Wall Tie Replacements

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