The instructions from the membrane company says to apply sealant to the screw threads and according to you, he didn't do that. ...........he just plain screwed up there. He should have done as the membrane company said to do.He is refusing to remove the screws and plug the holes.
Yes, a lot of holes, and yes a lot of individual steps done over and over and over...... X-2000, but that's what the manufacturer said to do and he didn't do it. Right?
I still don't understand plugging of the holes. This isn't a boat floating on water and no liquid water will ever come up those holes.
Ask Tapcon if re-drilling for the larger diameter 1/4" screws would be a decent repair. Replace the current long screws with the correct, but next larger sized screws would be a good fix. If they agree, just include the sealant on the threads of these new screws as recommended by the membrane company. Problem solved.
I just see zero reason to fill the entire length of those excessively drilled holes........ what will it accomplish? It won't make the slab stronger. Personally, I don't believe the holes make the slab any weaker. Even tho it seems dumb to drill all the way through, I'm trying hard to think if there is any real damage that was done. I don't know, but I don't thins so being the holes are so small............ barely over 1/8 of an inch.
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