Ultimate DIY Guide to Exterior Basement Foundation Waterproofing

Or How I Spent My Summer Vacation

Water damage in your basement? Cracks in your block wall? Lack of social weekend social engagements? With a bit of planning, a modest amount of money for materials, and a whole lot of time and labor, you too can excavate, dampproof, waterproof, insulate, and backfill your foundation.

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Fill the Gap Between a Concrete Patio and House

We’ve noticed water damage in our sunroom, which is bordered on one side by our concrete patio. After a quick investigation we believe that water has entered the gap between the patio and the foundation. If we’re right then that hopefully accounts for the water damage.

The gap in question was previously filled with either fiberboard or concrete crack sealant, but enough of it has deteriorated to conceivably allow moisture in.

To remedy this issue I installed backer rod in the gap that I then covered with concrete crack sealant. This will hopefully be the fix that keeps that wall of the sunroom nice and dry.

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