ᐅ Height for underfloor heating

Created on: 18 Jan 2016 12:45
I
ibu400
Hello,

we would like to convert our upper floor – currently, there is only the concrete ceiling. Unfortunately, the windows were installed quite low (bottom edge just 90cm (35 inches) above the floor). That’s why we want to keep the floor buildup as low as possible with screed, underfloor heating, etc. Therefore, my question is: what is the minimum height that should be planned?
L
Legurit
18 Jan 2016 22:09
Difficult to very difficult.
More insulation was installed in the bathroom – otherwise, impact sound insulation panels were used. Pipes were covered and wrapped with PUR and plastic sheeting (significantly smaller diameter). I was not very satisfied with that. As far as I have read and understood, the main concern with the pipes is to have enough screed above them.
S
Sebastian79
18 Jan 2016 22:12
Yes, and they are located within the insulation (which in your case is directly around the pipes). It is more important that everything is decoupled from the screed—so there should be a membrane or foil underneath.

Yesterday I finally finished the screed insulation after a week—honestly, I found it dreadful.
L
Legurit
18 Jan 2016 22:18
I just hope they properly covered everything with the membrane – you never know (it looked good while they were pouring the screed, but of course I wasn’t there).
For the screed insulation, I only reworked the edges and the taped seams – overall, they managed to avoid creating any wall connections. I think for my next house I’ll handle the insulation myself, though – they all seemed to lack attention to detail.
Are you getting cement screed or flowing screed?
S
Sebastian79
18 Jan 2016 22:20
Are you already thinking about your next house? No screed installer will lay the insulation as carefully as you would yourself...

No flowing screed – cement screed on the upper floor/basement and anhydrite on the ground floor.
L
Legurit
18 Jan 2016 22:40
I want to have a house someday with a large plot of land and few neighbors, but with sheep – and a bungalow; probably not for another 30 years.