In message , Tim Lamb
writes
Right. Floor heating pipe ready for screeders!

Next issue is fixed load (kitchen units) on 18mm chip over 40mm PIR
foam.
The heating system suppliers recommend stiffening the floor (insert
suitable batten) where the load will bear. Kitchen designers pooh pooh
this as unnecessary. The kitchen units are on site so not impossible to
measure. Not actually feet but a circular bearer near each corner of a
600mm unit.

Scrub that last bit. I think it will have normal screw in feet!

Any thoughts?

--
Tim Lamb