Cavity walls and sideways have been in use in the late 19th century, and are now the norm method of building housing. Although they could appear as an insignificant part of the construction wall ties are a significant contributor to the strength and stability of the construction.
In some cases, wall ties are susceptible to corrosion and require replacing. You can get a professional wall tie replacement in Sydney for structural stability of your building.
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How can you determine when corrosion has occurred and what you take to correct the issue when you are converting or renovating an existing structure?
The first step is to discuss the way wall ties function to better understand the reasons why problems could be created when they are corroded.
Wall ties are placed between the outer and inner leaves of a wall made of masonry in a consistent spacing way to help resist external forces such as wind suction, in particular between spaces, and also in areas that are not reinforced, like gables.
As such stainless steel division ties are required for the installation of cavity walls, in past, mild or galvanized steel could have been used, which could be susceptible to rust in time.
The mild steel's corrosion results in the expansion of the ties and forces the bricks to separate. While stainless steel wall ties are nowadays required for installing cavity walls but in the past, mild or galvanized steel could be used, which could become prone to corrosion with time. Corrosion of mild steel leads to expansion of the ties which can force the bricks to separate.