underfloor heating

[ruddez]

got to screed over underfloor heating to a depth of 100mm is it possible to use concrete all in which i find would be easier to screed and then ribolay just wondering if it would affect the underfloor heating in anyway ie; the heat output etc as there is chippings in the mix any advice thanks

 

[stevo79]

best thing to use for screeding a floor is screed, if you use concrete then you're concreting it not screeding it. and yes probably will affect the heat as concrete is much dencer than screed
surly it is easier to just screed it normaly and leave a lovely nice flat floor and the job's done in a 1er no going back to **** about

 

[ruddez]

thanks

 

[johniosaif]

lots of people put concrete on under floor heating, normally its a polished concrete and often coloured too, but its not for amateurs... it is as good a sscreed for holding the heat..

 

[FlowScreed]

With depths of 100mm it might be worth using agilia.
Its a self compacting flowing concrete which is easy to place and should achieve a screed finish.
Alternatively, if there is a structural base already down, ie block n beam it concrete sub base, you could just increase insulation depth and place an anhydrite screed such as gyvlon. You will only require 30mm depths from the top of the ufh pipe to the surface finish and will get the most out of your ufh system.
Hope this helps

 

[FlowScreed]

Should have said block and beam OR concrete sub base