The structural survey report on this London social housing block
The survey of these circa 1960s/1970s blocks of flats revealed, that due to a construction defect, the external brickwork had insufficient support. AWT also found heavily corroded wall ties plus a lack of weep vents and no horizontal expansion joints.
The infill wall external brickwork was originally only supported onto the concrete floor beam by less than 50mm. Where the wall had bulged outward this was reducing the support to just 30mm with the loads onto the brick-slips causing them to bulge out.
The infill wall brickwork was leaning and in danger of becoming detached. AWT promptly made the elevation floor safe (erecting a scaffold to provide access) by installing AWT's specially developed props.
The remedial work included:
Installation of stainless steel support angles and cavity trays
Clearing debris from the wall cavities
Rebuilding the brickwork by removal, re-bedding and fixing of brick slips
Installation of stainless steel wall ties
Provision of horizontal expansion joints.
The original bricks and brick slips were reused when possible. Replacement bricks, mortar and sealants were colour matched to maintain the visual integrity of the apartment blocks.
Action Wall Ties are the apartment block repair specialists and our brick slip and wall tie replacement solutions are available to client’s in the South east i.e. in London & in Kent in Sussex, Surrey & in Essex
Action Wall Ties (AWT) are specialists in structural repairs to concrete framed buildings and tower block from movement to wall tie replacement and brick slip repairs, and we provide our specialist professional solutions to a wide variety of structural problems. Contact us on 01227 721 255, or email us.