On February 5, 2012 at 19:42, cgav said...
Is there a way to know (other than the stamp in the garage) if I've got a post tension slab?
I believe they X-ray for it; if a stamp isn't present or you don't have the original engineering plans. Trust me you do not want to pay guesswork with this.
Is your house a single family home, slab on grade? I've never heard of a residential post tension slab, except maybe in a high rise condo.
We have post tension slabs on single family residences all over Vegas; I used to have a home with this...built in 2008.
