ᐅ Ceiling height too low – lowering the floor level

Hello there.
We want to renovate our outbuilding and install underfloor heating. Now we have a problem with the ceiling height. It is currently 190cm (75 inches). The underfloor heating system has a total height of 25cm (10 inches). The heating installer said we need to lower the floor by 35cm (14 inches) compared to its current level to have a reasonable ceiling height. The existing base is a concrete slab. Now the question is, how do we level the slab again after cutting or removing 35cm (14 inches) from it? Or can someone explain the typical floor structure up to the underfloor heating?

Have a nice Sunday everyone.

There are also retrofit systems for underfloor heating that require only a few centimeters (inches) of installation height.

Thank you for your response, but we still have a ceiling beam in the middle of the room. The beam extends further into the room. If we build any higher, I will hit my head on the beam.

You want to remove some concrete? What do you intend to do with the reinforcement? There is a reason why it is embedded there.

Hello,
that’s the question. The heating engineer just said, you’ll go 35cm (14 inches) deeper here, you can manage that on your own.

This effort is not proportional to the underfloor heating system. Removing 35cm (14 inches) basically means taking out the entire floor slab.