ᐅ Underfloor heating on a brick floor

Created on: 31 May 2024 18:13
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Bau-Gee1
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Bau-Gee1
31 May 2024 18:13
Hello everyone,

Starting situation: House from 1954, room with a ground-level brick floor (formerly a garage).

My plan: Level the floor (any recommendations? It should be as cost-effective as possible). Then install 50mm (2 inches) styrofoam panels for floor insulation, glued edge-to-edge. Above that, a vapor barrier to prevent rising moisture, with perimeter insulation strips. Then underfloor heating with a staple-up system, covered by a 50mm (2 inches) flowing screed.

What I’m uncertain about: The bricks in the floor draw moisture capillarily from the ground, which the vapor barrier will then block from evaporating. Could this cause mold problems? Or am I worrying unnecessarily because the bricks are at ground level and will release their moisture back into the soil?