This leaky garage is tucked into a hill beneath living space and a concrete patio (Photo 1). The home, built about 1945, underwent expansion in 1977 to create more living space atop the patio/garage roof. In 1983, the homeowners added another 1½ inches of concrete over the garage roof in an attempt to stop leaks. The garage ceiling leaks continued until 2014, when the extra 1½-inch concrete layer was removed. Installed in its place was a waterproof membrane, topped off with a new layer of concrete. Well, the leaks stopped for a short time, but then they returned in the central ...
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