Our engineer specified 100mm insulation and 75mm screed in our 2 storey build. Is 100mm insulation in the floor overkill ? I was thinking of making it 50mm which would give me some more floor-to-ceiling height and save me money on insulation that I could use better in the attic/roof.
Also for the second floor (above hollowcore), what depth of screed is normal and should i put insulation on the second floor too ?
any advice appreciated.
Also for the second floor (above hollowcore), what depth of screed is normal and should i put insulation on the second floor too ?
any advice appreciated.