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WALL-TIE INSTALLATION SOUTHPORT
Wall Ties are; metal ties which connect at regular intervals the outer and inner leaves of a cavity wall. Wall ties are an essential element for the stability of a cavity wall structure.
Investigations have alerted the building and construction industry to a problem of potentially massive proportions, the scale of which is only now being fully understood. Any building with cavity walls built prior to 1981, an estimated 10 million dwellings, could be prone to wall tie corrosion and failure. Often the problem is made worse by insufficient ties having been installed.
Early types are of ungalvanised metal; often fishtail pattern in shape of which can rust and expand up to six times their own thickness in the outer leaf of a masonry wall. This will cause the masonry to bulge out and eventually, can become detached from the rest of the wall. High winds can then cause considerable damage to walls especially in exposed conditions.
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