All balconies have fast acting concrete cancer through out sections.
Causes a combination from poor workmanship when poor concrete slabs not enough cover and exposed weather.
Existing brick joint have broken down to a powder and will need to be repointed.
Crack stitching to be under taken in some ares from ground movement
The building solution
Cleaning existing rust with a wired brush treating with anti rust chemicals and using Sica Mono top Concrete spalling kit to repair areas effected by erosion.
Repoint grinding out 20mm from the facade injected new formulated mortar in the ares required.
Helifix stitching system was undertaken to stitch long cracks in walls up to 1m long.