New interior wall on concrete floor with hydronic underfloor heating

[passenger]

Hello!

I found this excellent forum a couple of days ago and have already found a lot of useful information.

What I haven't found is how to build a new interior wall on a concrete floor with underfloor heating. Or more precisely, building the wall is not a problem, it's how to attach it to the floor that's the big question. Screwing is not an option, I assume.

 

[Rrrrr]

I would glue. Do you think there are metal studs with adhesive tape underneath? Otherwise, there's for example PL400.

 

[MathiasS]

Yes, exactly that's how I'm planning to do it. Sheet metal rule (wood would work in this house too) that is glued with pl400. It will stick like a rock and be impossible to remove without explosives.

 

[Benny_Steen]

I did that when I built a partition wall in the laundry room. Used PL400 and also placed a strip of windproof paper under the beam to prevent potential moisture migration from the concrete (glue on both sides of the strip).

Tried to pull it off, it was solid as a rock. More stable than if screwed with nail plugs.

Edit; also glued glass blocks with PL400 in another place and they are "unfortunately" also solid as heck, so use PL400 where it really needs it...

/benny

 

[passenger]

Thanks for all the answers! I did some research myself, and here is the winning answer:

First, turn off the heat and let it stay off until the floor becomes completely cold, then turn the heat back on and check with the thermal camera that you rented the same day. Soon you'll see where the heating coils meander in the floor and can make markings at a respectful distance.

 

[MathiasS]

Of course, you can do that (if you haven't been diligent and measured the pipes when you laid them down), but it's completely unnecessary. I know exactly where my pipes are, but I still won't screw into the floor. It's not needed.

 

[passenger]

The owner before the last built it to run a kennel. Now it's becoming a guesthouse. hehe. Have no idea where the trails wind.

 

[Jan-Å]

I just used double-sided tape, the wall isn't going anywhere and is anchored to the wall and ceiling which is more than enough. I once drilled into a floor with underfloor heating where it was measured and marked where the pipe was, never making that mistake again :blushing:

 

[Benny_Steen]

Glue/tape works.

Thermal camera is overkill, if you still want to use it, a regular cheap laser thermometer works as well.

 

[passenger]

Thank you for the suggestions!

It will be a tiled wet room on one side, so I want the wall to be anchored as stably as possible.

I was thinking of using a sill band underneath, and it doesn't look quite "glue-friendly" on one side. Maybe it would work better with a regular rubber membrane.