We are laying a new slab and trying to get some more information about whether we should insulate it and if so, whether we need to do under slab insulation and/or edge insulation.
We will be having polished concrete flooring (with a topping) and these floors have very limited direct solar access. The house is your typical ground floor workers cottage which is likely to be fairly cold in winter due to the lack of natural light and it is in inner Sydney so the ambient temperatures are quite moderate.
Regarding heating, we have ruled out underfloor heating and are considering hydronic radiator panels.
Any insights would be much appreciated!