maxpd
2022-05-27 12:36:49
- #1
Hi everyone,
I have a 20sqm underground garage, whose entrance is below ground level, but the rest is above ground. I want to convert this space into living space.
The floor is a 12cm concrete slab from 1964.
Due to microcracks, some moisture has come through twice so far during high groundwater. The room has also been flooded up to 50cm, which hopefully will not happen again due to electrical backwater valves with pumps, sewer renovations, and backwater basins.
There is a floor drain in the room, which is why height differences of 5cm are present. The floor structure would be 8 cm at the deepest point and accordingly only 3 cm at the highest point. The build-up height is limited by a rail system of a sliding door.
My plan so far was the following structure:
Concrete contact
Sealing slurry
Leveling compound
Floating insulation
Floating cork floor (underneath two small electric underfloor heating foils in two spots, hence floating)
Recommendation from a building material manufacturer:
Welded membrane
Glued insulation
Concrete screed as leveling
OSB boards for weight distribution
Floating cork (alternatively glued, but with an additional layer of absorbent screed on OSB)
I feel that before I proceed with this, I should get more ideas/concerns ^^ because between a 0% and 100% solution there are known to be many variants.
One more note: At one spot, a 400kg heavy fitness machine is to be positioned, where I would have left the floor covering and insulation out afterwards due to low ceiling height. This is not so easy to do in the recommended variant, as the concrete screed would have to be omitted there due to the order of layers.
The floor structure would be 8 cm at the lowest point and accordingly only 3 cm at the highest.
I look forward to more ideas :)
Best regards
maxpd
I have a 20sqm underground garage, whose entrance is below ground level, but the rest is above ground. I want to convert this space into living space.
The floor is a 12cm concrete slab from 1964.
Due to microcracks, some moisture has come through twice so far during high groundwater. The room has also been flooded up to 50cm, which hopefully will not happen again due to electrical backwater valves with pumps, sewer renovations, and backwater basins.
There is a floor drain in the room, which is why height differences of 5cm are present. The floor structure would be 8 cm at the deepest point and accordingly only 3 cm at the highest point. The build-up height is limited by a rail system of a sliding door.
My plan so far was the following structure:
Concrete contact
Sealing slurry
Leveling compound
Floating insulation
Floating cork floor (underneath two small electric underfloor heating foils in two spots, hence floating)
Recommendation from a building material manufacturer:
Welded membrane
Glued insulation
Concrete screed as leveling
OSB boards for weight distribution
Floating cork (alternatively glued, but with an additional layer of absorbent screed on OSB)
I feel that before I proceed with this, I should get more ideas/concerns ^^ because between a 0% and 100% solution there are known to be many variants.
One more note: At one spot, a 400kg heavy fitness machine is to be positioned, where I would have left the floor covering and insulation out afterwards due to low ceiling height. This is not so easy to do in the recommended variant, as the concrete screed would have to be omitted there due to the order of layers.
The floor structure would be 8 cm at the lowest point and accordingly only 3 cm at the highest.
I look forward to more ideas :)
Best regards
maxpd