New pour concrete slab heating

[daveox]

Looking at using SlabHeat cable to heat an 800 sf garage with a 4" concrete slab using 2" foam below.  Builder will use 6" square mesh where I expect to tie the wires per our layout.  My question is can the wire be walked on by the concrete workers during the pouring stage without being damaged?  Or do I have to protect it with a 'floating' deck that we pull out as they level the concrete?  Also, do they need to place 'tables' to support the mesh/wire at the correct depth, or can they just pull up the mesh as they go like normal?

Thanks all!