I have recently moved into a house with an outbuilding. The outbuilding used to be used as a flower studio, so the walls are timber clad and insulated and there is a small roof void that's insulated, but the floor is just solid concrete which is not insulated.
I want to make this a more liveable space for an office and games room etc. simply by installing a couple of wall mounted oil radiators and laying some flooring. I'm assuming however that I need to put some kind of insulation and damp proofing between the painted concrete floor and the floor covering (which will either be laminate or perhaps a bit of cheap carpet).
Do I have to use just a plastic membrane and standard underlay products or is there something better/more efficient that will better keep the heat in and the floor covering damp free?
The floor can be painted with a solution called Synthapruf, know as black jack in the trade. This can be bought from builders merchants. Take a look at our Underfloor Insulation project for all the guidance you need on insulating a concrete floor without ripping everything up.
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