Underfloor heating connections in the wrong room

Hello everyone,

our builder laid the pipes for the underfloor heating in the floor slab under the steel.
There is roughly 25-30 cm of concrete/steel above the pipes.
But something went wrong and the pipes for the underfloor heating do not come out of the floor in the [Haustechnikraum], but in the dressing room.

The architect said that the wall in the dressing room would have to be moved forward a bit and the pipes routed inside the wall. But that means the dressing room would easily become 20 cm smaller.
Is it possible to break open the floor slab to lay the pipes under the wooden stud into the [Haustechnikraum]?

What would you do in my place?

Regards
Tito

Hard to say without knowledge of the further circumstances ([Grundriss]? [Heizungsplanung]?). What does the developer say about it? What role does the architect play (employee of the developer)? Is a 20 cm smaller dressing room still usable? First insist on rectification, see what comes then ...

Hello,

attached is the floor plan with the target and actual condition. The garage is unheated. I would have to get the heating plan from the developer. The architect is employed by the developer.

The dressing room is already quite narrow at 2.28 m wide. In the end, it would only be 2 m wide, which is really very tight.

The question is whether it would be technically feasible to lay the pipes. According to the architect, this is not possible. However, the managing director said that it would have to be checked whether the floor could be broken up there.

Regards Tito

The floor plan with the target and actual condition is attached.

Am I correct in assuming that the cables are more likely too short than too long? They probably come from the right side of the plan and should end in the technical room. Someone made a mistake; now they end earlier.

According to the architect, that is not possible.

It is a matter of cost and time.

I would insist on correction. Technically, it is certainly possible. However, you don’t need to set the details (and shouldn’t). Say politely but firmly that you want the target condition. Request a proposed solution within a reasonable timeframe.

That is the civilized way; everything else then with a lawyer or you give up on the target condition.

It seems to me that someone took the partition wall as a reference and then confused right and left. And apparently also top and bottom, because how else should a foundation reinforcement heating work as underfloor heating?

I would compare with the contractor the value of the services rendered so far including the costs of removing this nonsense, and have a professional finish the house. Otherwise, the contractor will be bankrupt from the warranty claims of another client before you even celebrate the topping-out ceremony.

Did the contractor possibly lay the pipes so deep "for safety reasons" so that he wouldn't accidentally drill into them himself while fastening the thresholds?

well, ending the whole contract over this matter is a bit of an overreaction. overall, you do like many small rooms. the room width should rather fit so that a predetermined wardrobe can be placed in it. a typical size is 1 meter wide pieces. so the storage room should have about 210cm raw construction width (which ends up being about 205 with a one-finger gap on each side). with 199cm width, you'll only fit special solutions in and it will, to put it mildly, be crap.

as mentioned before, the pipes were probably a bit too short and they quickly looked for a cheap botch solution. other people might have to deal with the problems later on.