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hawaiiboy 02-04-2013 11:51 PM

What is causing my slab to become powdery
3 Attachment(s)
Anyone have seen this before? We once has an ant problem.

Attachment 64977

It's right below the t1-11 wood panel (exterior)

stadry 02-05-2013 05:36 PM

still do have an ant problem as that is the result of the dreaded antus concretus digesterous ( concrete eating ant larvae ) as they transition to adulthood,,, IF they get large enough AND hungry enough, your house will soon fall down :eek:

actually its efflorescence which is causing the coating to fall off,,, check for moisture behind the wall

joecaption 02-05-2013 06:09 PM

Sure it's not just aluminum that was used as a termite shield that's falling apart because it came in contact with the pressure treated foundation plate?

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