D53

[quote user="WJT"] Powerdesal, we are doing the same when we finally get to our living room and kitchen downstairs. I agree with what has been said about tiled floors being cold and would like to use something like the product in the link below. This sort of thing is only 2.5mm thick and the insulation board is 3mm. Therefore, a total of only 5.5mm. I assume that both would need a layer of screed over though.  We have radiators so it wouldn't be our main source of heat but just used to take the chill of the tiles.We can't afford too much height so was hoping we could get away with as thin a screed as possible. I love wooden floors but it would not be practical in this area and would like perhaps terra cotta. http://cgi.ebay.co.uk/Devimat-Underfloor-Heating-Mat-12-0m-Concrete-Floor_W0QQitemZ350124072892QQihZ022QQcategoryZ20598QQtcZphotoQQcmdZViewItemQQ_trksidZp1742.m153.l1262 http://cgi.ebay.co.uk/Underfloor-Thermal-Insulation-Tiles-5-sq-m-3mm-Thick_W0QQitemZ350133611508QQihZ022QQcategoryZ20604QQtcZphotoQQcmdZViewItemQQ_trksidZp1742.m153.l1262 [/quote]   you wont need scread,but when working out the cost will also need a probe which is laid the same time as the mat and thermostat,use flexable adhesive for the tiles.

is it a vinyl floor as in lino/cushion floor  or   vinyl tiles ????   If its  self adhesive tiles making a crackling noise  they've come away from the concrete try using an air dryer to warm them up to see if they sink down. adhesive wise spray glue or contact adhesive

As mike said or screw  3/4 ply sheets down then lay ] Option 1 wooden floor or laminalte floor on top Option 2 use flexable adhesive and tile Option 3  screw hardibacker on top of 3/4 ply use normal adhesive and tile   3/4 ply will be a good insulator and very stable for any of the above