Is is still OK with regs to not use a screed, just the concrete slab
and floor self levelling / finishing on top (and insulation under the
slab) ? If so, do you need insulation around the edge of the slab ?
Also, can you embed a floor channel straight into the slab - services
for island unit ?
I cannot see the point in a screed unless UFH or similar. Radiator
pipes will not be buried - I don't like that idea.
Cheers,
Simon.