Quote:
Originally Posted by odysseus
I also want to note for post-tensioned slabs that if you drill into the slab - and avoid the tension cables, and yes void the warranty and such, if you later try to sell the house - you can get hit by prospective buyers on inspection with this. They can try to dock you on the asking price with the cost of fixing that. It is not going to help the sale, is what I mean to say. Of course, they might not be happy with the extra concrete work as noted here, but that is not a point against structural integrity.
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Good point, and another good reason to have photo evidence of what you did.
Also, when you drill for the anchors, make sure and drill a hole that is less than the depth of your new slab. Redheads sunk at 4in require something like 6,000-8,000 pounds of force to pull, so no need to drill the hole to China or into the PT slab.