A typical bowing wall
Bowing walls is a wall that is showing signs of bulging. This is often highlighted on houses where the middle section of a wall is pushing away from the rest of the building, or on a retaining wall where the weight of the soil is causing the wall to bulge.
Why does a wall bulge?
The cause of bowing walls in many old buildings may well be due to the fact that there was no mechanical connection between the floor and ceiling joists and the masonry. The traditional method of connection has been to rely on friction due to gravity. When this frictional resistance is released, due to movement over the years within the timbers or masonry, it can leave a freestanding wall of considerable height that is very susceptible to bowing.
How does Target fix bowing walls?
Target has designed a specialist lateral restraint tie which is manufactured - again by Target - to restrain bulging or bowing walls. The Bow Flex tie is installed through the first floor joist (on two storey buildings) and is fixed back to the bulging wall. The installation procedure does not require the removal of floorboards inside the house (unless there is a need to locate the exact position of the floor joists), and is therefore a generally mess-free method of preventing further wall movement. Further information can be found on the Bow Flex page.