Wall ties are used to connect the inner and outer wythes of cavity constructed walls and this type of cavity wall construction is commonplace in the US. Successful solutions are available to repair the wall without having to rebuild the entire outer wythe which in the past has caused a wide range of secondary problems.
Common wall tie failure indicators include:
• Horizontal cracking
• Out of plumb, bowed, cracked or collapsed brickwork elevations
• Rust staining on the walls
• Problems having been identified within properties of a similar age and location