|Client:||Affinity Sutton Homes|
|Approved Installer:||RM Construction|
This terrace of 22, two storey, housing association properties of traditional cavity wall construction was built in a shallow crescent shape. Prior to an upgrade programme of external wall insulation, a structural survey was carried out which identified masonry cracking of varying degrees. Most of the cracks were on the external rear elevation, although there was also some damage on the front elevation and internally, primarily in homes at the centre of the crescent. Thermal movement, and a lack of adequate movement joints, was the main cause of the problems. The concave shape of the terrace's rear elevation had 'squeezed' the masonry, resulting in deformation of the wall profile, reduction in cavity width and wall tie damage. Structural integrity needed to be reliably restored with the minimum of disruption as the properties would remain occupied during the works.
An appropriate repair scheme was devised using a combination of Helifix masonry repair products.
Once all the concealed repairs were completed, with minimal disturbance to the building fabric or the occupants, the properties were structurally secured but visually unaltered. Download the case study