20mm thick marble

[ms.tiles]

hi all

been to look at a job and ive been booked in, 20m conservatory with undertile heating.
now they have had their heads turned by the marble work top fitter. he has said that in hampstead heath and other posh london places people are having slabs of marble cut into 1500x1000mm tiles and put down on the floors.
ive got the underfloor heating work there if they go for slate(i lay) or the marble. thing is the marble is atleast 20mm thick, would this effect the heating in anyway as its the only form of heating going into the conservatory or would it heat up fine.
obviously any effect on the heating would go in my favour.

any info would be appreciated

 

[Mike]

i didn't think ufh heating would be sufficient to heat a conservatory as a primary heat source regardless of what tiles were laid. the heat would still get through the marble, it just may take longer to heat up. why not suggest the customers looking for a better price on the marble elsewhere (you may then get the job)

 

[Thespanishtiler]

how many watts per m2

any insulation under the ufh

 

[Gall.B]

Once they are warm they will be fine.

 

[DHTiling]

If a 200w system , then that is sufficient for a primary heat source.

 

[The D]

i didn't think ufh heating would be sufficient to heat a conservatory as a primary heat source regardless of what tiles were laid. the heat would still get through the marble, it just may take longer to heat up. why not suggest the customers looking for a better price on the marble elsewhere (you may then get the job)

You have to be kidding m8 I’ve had ufh in my conservatory for years the radiators are useless so don’t even turn them on in there since the ufh went in.

 

[ms.tiles]

hi Mike
the marble work tops are all booked in ready to go this week.
with regards to the heating,warm up said that it should be warm enough with insulation boards.
i think i'll call them again tomorrow and get them to confirm it,they dont want tile warmers they want room heat.
their plumber said their boiler couldnt run another radiator off it so im not sure what their choices are now if warm up will not heat the room.
thanks for your reply

 

[hillhead]

I fitted 2300 x 1300 x 20mm marble lately with wet UFH.
Hard and heavy work and cost a fortune, I have to put a red rojo border around too.
No probs with heat there I can say.

 

[ms.tiles]

hi all
sorry you was all replying while i was writing.
there will be 10mm insulation boards under the warm up then below that is a 3inch screed with insulation below that.
it will be the 150 watt warm up single wire system.
does everybody agree that the marble will take longer to heat up and warm the room??
many thanks all

 

[jay]

hi all
sorry you was all replying while i was writing.
there will be 10mm insulation boards under the warm up then below that is a 3inch screed with insulation below that.
it will be the 150 watt warm up single wire system.
does everybody agree that the marble will take longer to heat up and warm the room??

yes it will take longer to warm up ,but may i ask whats under the screed as far as substrate thanks (ufh is just to take the chill off the tiles not a main source of heating)