DPM and Underfloor heating

[tfs]

f75 is not suited to under floor heating to the best of my knowledge. Have read this on the literature in the past so I would give them a call first just to be sure.

 

[Ian]

f75 is not suited to under floor heating to the best of my knowledge. Have read this on the literature in the past so I would give them a call first just to be sure.

I've just read the data for f75 and f76 and neither can be used for UFH. So thats another thing I've learnt! Good spot tfs. There is no info that I can find on whether insulation boards can be put down then the mat, so a call to find out will be necessary.

 

[Ajax123]

F75 I think is a paint on epoxy DPM. When you are using paint on DPM's they should not be used as a means to trap moisture in the heated substrate. That is not as far as I can see what you are doing. You are trapping the moisture in the ultimate substrate and then uncoupling everything else with insulation boards so the use of F75 as a DPM is perfectly acceptable from a technical stand point. If you are worried about the DPM manufacturer removing any warranty try Tremco Universal One Coat which IS suitable for use with Underfloor heating.

 

[tfs]

Yes, it is a two coat (roller applied) epoxy dpm.