Hoping to change my old joist and floorboards floor to solid concrete.
We have a 200mm void below the floorboards.
What thickness of insulation board and concrete screed do I need?
DPM will be put below and above the insulation boards.
We have a 200mm void below the floorboards.
What thickness of insulation board and concrete screed do I need?
DPM will be put below and above the insulation boards.