Underfloor Heating in the bathroom

[ifnwen99]

can anyone help with the question of what to use on top of a rather creaky wooden floor before installing underfloor heating. Is it OK to use the insulation board as sold by wickes or should there be a sheet of ply or hardboesrd under the insulation element.

Does anyone have any preference as to using a mat system or the cable type and if so from whom?

 

[kevplumb]

if its creaky see whats under there first

 

[Agile]

Unless its a very large bathroom, the UFH is unlikely to provide enough heat. Expect about 50w per m² !

I hope you realise how long the heat up time is likely to be!

I would have thought that "softboard" would provide both insulation and absorb movement.

You dont say what flooring you are planning to use. I would have thought that tiles would need a firm ply sheet underneath to avoid cracking.

Some of the electric heating elements can be placed directly under tiles within the adhesive thickness but be guided by the manufacturer's instructions.

Tony