Although it is referred to as interior waterproofing by every water proofing company, technically it is not waterproofing at all, it is really water control.
It is a technique used to divert basement water via a drainage tile installed under the floor around the perimeter and connected to a sump pit and pumped out and away from the house.
Ideally, waterproofing should be done from the exterior. This requires excavation around the perimeter of the house to access the problem area.
However, situations arise where it is simply not in the budget, difficult or near impossible to waterproof from the exterior. For example: decks, patio, neighboring house, etc. In this case, an interior system is the only other choice.
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