Foundation Wall Crack Sealing
The objective of Foundation wall crack sealing is to introduce an elastic polymer into the interior of the wall with the subsequent expansion of the polymer to seal the wall crack. The steps in the process are dependent on the foundation type, whether its a poured concrete wall or cinder block wall. In either case, the polymer expands typically from the interior of the wall through to the wall exterior forming a continuous seal from front to back that prevents water intrusion.
These are installed typically onto properties that have a negative slope forming a basin or low area in the yard which in turn puts added hydrostatic pressure onto the house foundation. The soil excavated to a depth anywhere from 2 ft. – 6 ft. depending on the grade and a corrugated, slotted (to allow water in) polyethylene pipe is laid in the trench. The drain pipe is laid into the trench with a slight grade of the soil to allow passive draining of the water to discharge at a downhill area that is lower than the drain pipe. Alternatively, a sump well can be installed to sump pit where it can be mechanically discharged to an appropriate location.
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