does underfloor heating thermal primer work well over asphalt covered concrete floor,

The question is ...Does it work at all....very sceptical myself

Waste of time and money........

Hi Paul are you talking about the green primer that comes with the ufh kits ? I would use sbr bond primer in this case

Originally Posted by garythetiler

Hi Paul are you talking about the green primer that comes with the ufh kits ? I would use sbr bond primer in this case

no not that stuff this stuff is seperate and doesnt come with any kits its sole purpose is to provide a barrier between certain substrates and avoid floor panels and its blue reason to see when applied when covered

thermal heat barrier brushed or rolled on new via nasa as it reads.

We always say put a mechanical barrier of sort between asphalt and underfloor heating. This is needed to keep the heat away from the asphalt, to stop the asphalt warming up/becoming soft. Would a thin layer of primer do that job????

Hi,
I bought some of the thermal primer a while back until I was convinced by you guys on here to use boards instead which I will be doing. As I have the primer anyway is there any reason/advantage in using it anyway on the Marmox boards before fitting the UFH?

No advantage over the Marmox, save it for a dusty floor.

Thanks Keith,
is that because it basically doesn't work or it just won't add any more thermal value to the board, just interested to know.

Cheers,
Roland

i always thought this was a bit of a con....i couldnt see how it could work TBH