We met with a PB and during the discussions, my husband (who is a project manager and has experience building multifamily properties with pools in Texas) asked about whether the PB puts crushed rock under the gunite to help mitigate movement, he looked at us like we were crazy and said he wasn't sure if they could do that but would have to check. He then said "well that's usually only done if you have an engineer come out and say that it needs it" and that engineers are paid to say stuff like that, it basically that it keeps them in business!
Wouldn't that be standard (not cost wise, but building wise)?
Shouldn't that be done always?
I don't want to completely dismiss a PB due to a weirdo sales guy, but he clearly seemed like he was new and hardly knew more than us about construction...