CMHC : Solving Persistent Moisture Problems

Case Study: This three-storey, 15-unit, 1,300 square metre (13,993 sq. ft) walk-up was built in 1958. In the 1980s, the building started showing symptoms of moisture damage.The symptoms appeared after the owners replaced the heating system boiler, installed a combustion air inlet in the boiler room, installed a new roof, sealed some air leakage and changed crawl space ventilation.

Full case study including causes and solution

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