Slab On-Grade, Over Bedrock

[nbr1]

Assuming no freeze/thaw or expansion of bedrock issues, is there any issue with placing a slab on-grade directely on a granular bed of 4-inches directly over limestone bedrock. Assuming the bedrock is relatively level.

Intuitively, I can't envision there being an issue with this; but would like a sanity check.

 

[Ron]

Assuming you do not have a drainage plane within the four inches...no.