Wall
Tie Replacement
Wall
tie corrosion is a common problem in properties
built prior to 1986. Wall
ties represent an important support in
cavity walls ie walls constructed with a cavity
between the inner (load
bearing
skin of masonry), and the outer (weather shield),
skin. The outer skin is normally extremely
thin in relation to its height so without
support, would be subject to damage by wind.
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Securing
a Wall Tie
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Wall
Tie in Cavity Wall
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The
installation of metal ties during construction
provides the support for the outer wall. However, unless
the ties are manufacture from stainless
steel or very heavily galvanised mild steel,
the ties are prone to rust making the wall
more vulnerable and occasionally causing
brickwork to bow.
Mild steel ties regretably have
a shorter life than the brickwork
in which they
are imbedded and during the life of the
building, may need replacement with stainless
steel wall ties which,
because they do not tend to rust,
will ensure a permanent solution. From
1945 cavity wall construction became normal
for houses
and many other buildings.
A
number of documented cases of cavity
wall distress attributable to wall tie failure,
have occurred in
Britain
and it is now predicted that the issue could potentially
affect all cavity wall structures built before
1981, some 10 million dwellings.
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How can Cavi - Tie help?
In order to assess
the current state of existing cavity wall ties Cavi
- Tie are able to utilise a variety of specialist
equipment. Using such equipment enables us to pinpoint
the wall ties within
the construction and consider the material condition
of the wall ties.
After assessing the condition of the cavity wall ties
we'll suggest a course of action to fix the problem.
Naturally, the corrective work is totally dependent
upon the magnitude of the problem and the specific
type of
wall tie existing the construction. Cavi - Tie can
supply and fit a variety of high quality
stainless steel
wall ties to counter virtually every eventuality.
We
can supply and fit the following varieties of wall
ties:
