thanks for the reply.
I asked about the extra panels and they advised against them because they would have to come from Sweden and would be an expensive option.
In the end I went for Marmox boards, the reasons being that they are also foam centered so should be similar in expansion to the...
my 1st post so please don't be too harsh on me
I'm refitting my kitchen at the moment. I have a concrete floor that I will be self levelling tonight.
I'm putting down underfloor heating with this stuff
http://www.floorheater.co.uk/ - 20mm thick for the walking areas of the kitchen
this...