Maintenance Matters 10 - At-Grade and Below-Grade Assemblies



Maintenance Matters 10


Most multi-unit residential buildings have multiple levels below ground level (below grade). Water ingress into these spaces is one of the primary building performance issues, a nuisance to occupants, and may result in long-term damage to the reinforced concrete structure. This bulletin looks at what maintenance must be performed, when to renew waterproofing membranes, and gives action plan tips.