Wall Tie Replacement

Wall Tie Failure

According to the Building Research Establishment, 2 million suffer wall tie corrosion or failure and are in need of specialist remedial wall ties replacement.
Often the problem is made worse when insufficient ties have been used during construction.

The absence of effective wall ties will, ultimately result in failure of a wall’s structural integrity and its probable collapse under high wind conditions.

Causes

 Inadequate protection – prior to the 1930s ties were not galvanised
 Substandard galvanising – the British Standard for weight of galvanising was actually reduced between 1964 and 1981
 Chemical action – for instance where corrosive black ash mortar has been used
 Location – such as marine environments with driving rain and salt laden atmospheres.

The Symptoms

 Horizontal cracking at regular intervals in external mortar joints. 
 Outward bulging of the wall.
 The lifting of roof edges.
 Internal cracks.

Replacement Ties

Each property is surveyed using a metal detector to locate the ties and an endoscope to examine their condition.

Where replacements are necessary, there are a range of stainless steel wall tie designs to suit the required specification.

For more information and advice please just call us or use the enquiry form.