under floor heating boards

[rossy]

when laying the boards can i just use some rapid set its on to concrete floor i know i need flexible for laying tiles but what about boards should i use flexible for boards too many thanks for any advise,,,

 

[Proper Job]

alright mate i would stick them down with kerra quick or keraflex maxi you can't go wrong mate. But regarding the base if its a new house i would go with flexi if its an old house you could use standard mate. You going to put self leveller over the top of the cable ???

 

[DHTiling]

All insulation boards must be stuck down with flexible adhesive...no matter what the substrate is...... ...

 

[rossy]

cheers all thanks for advise.....ready to go now....