Hi again,
"I don't understand why the perimeter insulation would have been fitted before the radon barrier but if neither can I see a problem with it. It should be fine, there would be no need for another board there IMO. Just to confirm, you fitted the perimeter insulation, then laid the radon barrier, turned it up the insulation board and then over the block and down into the cavity?Am I correct in this assumption? If so, it sounds ok to me, drive on with the floor insulation. Hope you remembered the radon sump and outlet pipe!"
The above is exactly what was done, including remembering the sump and outlet pipe!!
But of course this is only around the external walls so should I not proceed with doing this around each room's internal walls when laying the floor insulation??
Just to let you know the order of things so far, we let plumber put his piping in for various things and then poured the subfloor slab..we will then put the floor insulation down, then the UFH and then the screed...so what do you think, will the perimeter insulation in each room help or be required????
thanks