Floor Insulation for Garage Conversion - What do Building Regs Suggest? Information, help, tips and advice on cavity walls, ceilings and lofts etc....

[welshti]

Hello all

I'm new to the site and want to find out what are the building regs and what insulation is best in my situation. ( living in wales )

Garage conversion to bedroom which has a concrete floor. I am trying to keep the thickness to a minimum so in need of some advice.

many thanks

[welsh brickie]

Minimum 50mm thick kingspan insulation board is usually the norm but check with builing control it may vary from one local authority to another

[welshti]

I recall 100mm being mentioned, whether they were talking about kingspan or another insulation board i do not know.
I could get away with 50mm kingspan :-) but 100mm would give me a higher step that is not really suitable and i dont want to start digging up the concrete floor.