Foundation Repair Methods Denver

QUESTION:
Bentonite clay basement waterproofing method?
We have a poured concrete basement, 4 years old, with 14 wall cracks (6 of which are actively leaking). We’re fixing the outside grade, extending our downspouts and adding window well covers. We’re having the cracks repaired from the interior as well.

We’re also considering using exterior injections of bentonite clay as a waterproofing method. Keep in mind this is exterior, not interior. What kind of experience have you had with this method? How long has it been holding up or how quickly did it fail? Does it seep into and clog the drain tile around the perimeter of the house or no? If not, how do they prevent that from happening? Any additional information you have on this method would be great. Thank you very much!
- ANSWER:
  Bentonite clay is like all other clays, it expands when wet and shrinks when dry.
  
  We once lived in a suburb of Denver where there was a great deal of bentonite clay in the soil. Every one went to great effort to keep the area (about 4 to 6 feet) near their foundation with a consistent water content. This was to keep the clay stable and not put extra pressure on the foundation.
  
  I would think with the number of cracks you have, a membrane type water proofing would be a surer and in the long run a cheaper solution.

foundation repair methods denver

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