Building cavity walls goes back to the beginning of the 19th century. They were built to thwart moisture, rain and retain heat during the long, cold winters. However, builders were not aware that over time their inventive ideas would fall victim to the adverse weather patterns they were trying to overcome. Building experts now appreciate that a lot of buildings predating 1980 have problems because of the cavity irons’ vulnerability to rust and corrosion.
Vulnerability To The Vicissitudes…
The expansion, deterioration and corrosion of irons embedded within the outer leaves compromises the structure leading to structural damage and unstable structures. This leaves the walls vulnerable to the vicissitudes of time and the weather, endangering the inhabitants of the property.
Step Like Cracks
The signs of wall ties in Eastbourne corroding are written on the outer leaves. The step like cracks on the outer leaves including the distention and contortion of the outer brickwork are clear proof of problems with the irons in the cavity losing their shape. Early detection and restoration of such structures is recommended as it can lead to structural collapse, and loss in the overall value of the property.
Incorrect Insertion Of Irons
There are also other reasons that might make it necessary to replace irons. This may be due to insufficient or incorrect insertion of the irons by incompetent or unscrupulous workmen. Buildings exposed to moisture and salty rains along the coast are also vulnerable, including all buildings constructed using black ash mortar.
There are quite a number of methods used to rectify corroding wall tie replacement in Eastbourne. The irons used to repair the damage are specifically for standing outer and inner leaves. Irons used while building new homes or houses aren’t suitable. The type of material, nature of the damage and other factors determine the appropriate method of restoration. There isn’t a standard iron to use during the repair process as the gaps between the cavities are not uniform. They differ from property to property. There is no one size fits all solution; what worked for your neighbour won’t necessarily work for you.
This is why it is necessary to conduct an initial investigation or survey to establish the seriousness of the damage, the distance between the cavities, the nature of the brickwork or block work used. Some firms conduct the surveys free of charge but some charge. This depends on the standard from one place to another.
If your cavity wall tie is failing, Cavitytech Systems Ltd provides fully trained and highly experienced surveyors have a range of solutions to solve the problem. Visit them online!