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I am looking at a house where they have installed a few radiators in the basement, tiles in the boiler room, ice-cold concrete floors in other rooms and the garage. Bare gypsum on the walls with small vents on each wall. There is also a laundry room with electric underfloor heating at the same floor level. Everything was done during a renovation in 2018 when they also drained the house.

I would prefer not to have to tear out a nice laundry room, do I have to because of underfloor heating on uninsulated floors? In the other rooms, I would like to have living space, is the only solution then to break out and insulate as well as install water-based underfloor heating?
 
  • Modern bathroom in a renovated basement, featuring a toilet, sink, and boiler with exposed copper pipes against white tiled walls and grey floor tiles.
  • Modern laundry room with white cabinets, washing machine, and dryer. Tile floor and countertop sink. Small window with a potted plant above.
  • Basement room with bare plaster walls, radiator, small windows, and storage shelves. Ceiling pipes are visible, with assorted items on shelves.
  • A basement room with wooden tile floor, white walls, radiator heating, a small window, and a ceiling light.
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joakimbrodd
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There are plenty of houses that do not experience problems without insulation in the slab. Everything depends on drainage and the type of soil and moisture under the house.
 
J
Jonatan79 Jonatan79 said:
There are plenty of houses that don't have problems without insulation in the slab. It all depends on drainage and the type of soil and moisture under the house.
So if the drainage is good, you don't need to do anything other than skim coat and paint, rely on radiators, and have a nice carpet to walk on?
 
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Mattias_Jo1 and 1 other
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J Johannnnnnn said:
So if the drainage is good, you just need to putty and paint, rely on radiators and a nice carpet to walk on?
Exactly, there are very nice soft carpets. I wouldn't tear up the floor and make a mess....
 
If you buy and are worried about the underfloor heating, you can just turn it off? That way you can heat via radiators instead.
 

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"Must" tear out is a bit of an exaggeration, it's not like the electric floor heating will ruin the house :) If it's tiles or concrete flooring (i.e., moisture-resistant) in the laundry room, you can just turn off the floor heating if you think it consumes too much electricity. Then it's no worse than before.

If you install water-based floor heating in the basement to avoid cold feet, you should expect to either have the heating system on during the summer (which you might otherwise save on) or have cold feet in the summer. I think it might be better to rely on slippers and "poor man's floor heating," i.e., rag rugs.

In general, I don't think you should expect to have a basement as a permanent living space, but it obviously depends on local conditions. We've had a workroom and "summer bedroom" in the basement, but I wouldn't want a permanent bedroom in the basement.
 
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H henche said:
If you buy and are worried about the underfloor heating, isn't it just a matter of turning it off? Then you can heat via radiators instead.
mrsnhp mrsnhp said:
"Must" tear out is a bit of an exaggeration; it's not like the electric underfloor heating will damage the house :) If it's tiles or concrete flooring (i.e., moisture-resistant) in the laundry room, you can just turn it off if you think it's consuming too much electricity. It's no worse than before.

If you install waterborne underfloor heating in the basement to avoid cold feet, you have to count on either having the heating on even in the summer (which you would otherwise save on) or having cold feet in the summer. I think it might be better to rely on slippers and "poor man's underfloor heating," i.e., rugs.

In general, I don't think one should count on having a basement as permanent living space, but of course, it depends on local conditions. We've had an office and "summer bedroom" in the basement, but I wouldn't want to have a permanent bedroom there.
Sounds reasonable, I've thought that the electric heating causes reverse moisture movement, but not if it's turned off, of course... The idea is to have an office and recreation room in the basement with the possibility to make a proper living space through waterborne heating in the future.
 
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mrsnhp
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I would probably be more concerned about the plastered walls. Are there wooden studs or steel studs behind them? It's hard to see in one picture if it's dirt at the bottom or something else. Generally, I believe that "naked" walls (or tiled) in the basement are preferable, but of course, it varies depending on the house and area what works.

edit: Same thing in the room where there is flooring, ask the realtor (if it's not clear from the prospectus) what kind of subfloor it is. Is it ventilated Platon or another solution (doesn't look like ventilated moldings), or is it framed directly on the slab? If the basement was done as recently as 2018, there are probably pictures documenting the work.
 
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tobbe9012 and 1 other
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H henche said:
I would probably be more concerned about the plastered walls. Are there wooden studs or steel studs behind them? It's hard to tell from the one picture if there's dirt at the bottom or something else. Generally, I consider "bare" walls (or tiled) in the basement to be preferable, but of course, it depends on the house and area what works.

edit: The same goes for the room with the floor, ask the realtor (if it's not stated in the prospectus) what kind of subfloor it is. Is it ventilated platon or another solution (doesn't look like ventilated strips), or is it directly on the slab? If the basement was done as recently as 2018, there are probably pictures documenting the work.
I think it's steel studs with insulation behind. They drained and additionally insulated the house in 2018 with a new facade but I don't think they insulated outside then.. the floor felt like plastic flooring, and I think it's directly on the concrete based on the height difference between the room and the garage.
 
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joakimbrodd
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J
This is what the garage looks like, situated between the rooms in the basement.
 
  • A garage with hay bales, a wheelbarrow, a bicycle, a red scooter, and shelves filled with tools and supplies.
J
There is also quite a large plaster release on the base, about 50x50cm (no picture). Could it be related to moisture?
 
  • Exterior corner of a house with grey plastered foundation and light grey wooden siding, two small windows, and gravel ground.
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