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A purpose built four storey office premises constructed in the 1970’s having a reinforced concrete framed structure with a combination of stone, cavity brickwork and precast concrete panels to the external elevations.
Each storey of the front elevation of the building comprised exposed aggregate precast concrete panels below windows which were divided by stone or precast concrete mullions and framed by lintels of a similar material.
Individual windows are framed with a projecting precast concrete cill and a recessed concrete lintel set within the width of the opening.
Localised evidence of damage to reinforced concrete window cills and defects on the ‘boot’ type lintels on all elevations was found due to concrete spalling and resulting in exposure of the embedded steel reinforcement.
Frescrete were appointed to remove the concrete boot lintels and insert new galvanised/stainless steel lintels coincident with the soffit of the original lintel with a new course of brickwork to the underside of the original opening. Removal of any cracked or spalled window cills and replacement with new units was also required.