Hello!
I'm new to this forum. Or I've been reading you for 3-4 months now. My partner and I have been planning to buy a house, and now it's finally done :)

A cute little 45 sqm house with red Falu paint and white corners (or they are black, but should be white :p)

Now to one of my thoughts. I have many since it's a house from '32, but let's start with the simplest.

Since the house only has 45 sqm of living space and 40 sqm of additional space (the basement), and the basement has approximately a depth of 1.8 at its lowest points, it would be quite good if we could chip out the basement and get a bit more ceiling height.

Unfortunately, there are linoleum tiles glued with black glue on about 50% of the basement. Likely asbestos.

If I understand it correctly, there are 2-3 ways to proceed (maybe more)

1. Use a jackhammer directly on the floor. The downside here is that I feel the asbestos will likely flow freely.
2. Try to scrape off the linoleum tiles and black glue, and then chip away the floor.
3. Saw 10 cm x 10 cm tiles and then remove them. The advantage is that it should be less dusty from the asbestos and then remove them one by one. The disadvantage might be that it's more work, I don't know. Maybe more expensive than chipping?
4. ?

So which way do you think sounds most sensible? Are there other options?

I should add that it is quite humid in the basement, but since the basement stands high up and on rock, I hope the moisture comes because of the linoleum tiles, we'll start there, so maybe we'll drain and insulate next year :)
 
It's not certain that you can drive out and lower the floor by 2dm, especially if you need to dig out 50cm to insulate and lay a capillary-breaking under the floor. Often older houses are built with a concrete footing that is double the width of the wall, and that's all that holds the wall. If you dig it out, this support must be complemented with a new footing under the existing one to maintain the support.

There is a member who has done this on their house, and I recall it was quite an extensive process and took a long time.

Regarding breaking out the footing with asbestos-bonded glue, with a disposable overall, half-mask with P3 filters, a big Hilti, and a running water hose constantly wetting the surface, I don't think it's that dangerous.
 
Okay.
Yes, I understand everything about protection and such.

It's frustrating that it might not be possible to lower it, but if you just want to remove the tiles and asbestos, is it water and that kind of grinding machine required then?

The annoying thing is that the rooms have different heights; some are 2m, and some are 1.8m, but maybe we just have to live with it. The most important thing, I feel, is to remove the linoleum tiles.

By the way, my partner and I talked about something; we have a ragdoll (cat), what do we do with him? Out with him in the garden, or? He's an indoor cat that hates being outside, but maybe we can force him for a weekend. Thinking about the asbestos. Or is it okay for him, as he is upstairs, so plastic wrapping + water should be enough (at least that's what I think).
 
You can rent a dust meter and install it in a basement window, for example, to create negative pressure in the basement so that air cannot be sucked in from above. With the water that binds any dust on the floor, it should work well. If you don't break up the floor, you can take it a bit easier with the water. It's possible to rent vacuum cleaners with water filters/HEPA filters that capture asbestos (a bit unsure of what level you need to be at).
 
How do I know if I can chisel the basement or not? The house has been extended a few times. In the "new" section (still a very long time ago) the rock goes into the foundation, but in the old section (where I want to chisel) it does not. So hopefully there is a proper footing and such there.

But wait now! You mentioned they had double-width footings. In the rooms I want to chisel out, half of the wall is twice as wide. My dad and I wondered why it was like that, but was it previously the footing? I know the stairs down to the basement were made at the same time as the "new" section in the basement (around '42 or something), so maybe they have already chiselled and reinforced, but not chiselled enough? Hmm, sounds like it's time to get an expert on this. Can anyone recommend someone in southern Stockholm? I live in Tullinge.
 
Expert sounds good, especially if it is out and rebuilt in stages.
 
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