Raising an existing concrete floor that's lower than rest of house
Posted: Fri Oct 01, 2021 10:24 pm
I am renovating a house . There is an extension which has a 3m by 4m floor approx 200 mm lower than the rest of the house. It is a concrete slab topped with 25 mm of polystyrene and chipboard.
I am thinking about how to raise it 200 mm reasonably efficiently...Possible options [1] celotex then screed [2] two layers of celotex then chipboard and [3] 100mm kingspan then aircrete blocks laid flat with sand /cement brushed into joins..sort of like block and beam...what do people think?
I am thinking about how to raise it 200 mm reasonably efficiently...Possible options [1] celotex then screed [2] two layers of celotex then chipboard and [3] 100mm kingspan then aircrete blocks laid flat with sand /cement brushed into joins..sort of like block and beam...what do people think?