CMHC: Repair and spalling of leaking clay brick

A few years after being built in Waterloo in 1980, a condominium project of three buildings six-storeys each, showed severe spalling of the clay brick on the building and site walls.Water leakage was also detected. Significant masonry damage occurred in three areas: below sloped roofs without eaves or gutters, at roof parapets and at enclosed, uninsulated balconies.

Full case study including causes and solution

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