Sealing the Basement

The basement was leaky, to put it mildly. It sounded like a waterfall down there when it rained hard. It required two sump pumps in the rainy season. We hope to solve that issue with a new product called SaniTred. This is the floor when we started last weekend. It had multiple cracks, and a few coats of paint and sealer patching it.

After grinding the paint away, it looked like this:

Now to water seal it.
STEP ONE: Dry out the cracks. We used a butane torch to apply high heat. It didn’t need to be totally dry…good thing. Those cracks don’t ever dry out!

STEP TWO: Coat the entire floor sans cracks with smooth sealant.

He started by rolling it…

…but discovered a squeegee worked best.

This stuff goes right up to the edge of the cracks, but not inside.

STEP THREE: Fill in the cracks with rubber “toothpaste.” This stuff expands and hardens to stop the water movement.

I only have finished photos of this step because Stephen had to apply it from midnight to 3 am due to the timing of the dry-time of the other product. Its a very precise process.

STEP FOUR: Apply the first sealer again; this time over the entire surface.

Now, we wait and see if it worked!


One Response

  1. Too cool to see how it’s done! Thanks for sharing the process. Stephen has got to be exhausted…what a trooper!

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