The building was a substantial traditionally built semi-detached domestic residence set out over two floors below a pitched tiled roof.
Signs of distortion and dropping to the brick arches, along with some cracking to the brickwork above. Previous attempts to repair the symptoms were noted to the rear ground and first floor fenestration openings.
The movement noted was clearly progressive, due to a combination of ageing, seasonal moisture, thermal expansion and contraction (i.e. hygrothermal) and inadequate restraining.
AWT’s Remedial scheme involved the introduction of bed joint reinforcement beaming and lintel repairs to add tensile strength, thus reinstating the brickwork’s integrity and the uniformity of the wall. After installation, pointing was raked out, reinstated and tinted to match the existing (see coloured remedial works on our proposal picture).
1. Bed joint reinforcement:
We introduced two rows of twin 8mm stainless steel corded joint reinforcement, forming a deep masonry beam – as indicated by red double dotted lines on our proposal images.
2. Fenestration lintel repair:
To the underside of the fenestration openings head we drilled for, and injected, grouted 8mm helical stainless steel pins through the brick arch and into the line of the deep masonry beam – as indicated with green parallel lines on our proposal images.