Hello!
I have a few different questions that I hope you can help clarify.
1. I've read and read but mostly just get confused about the best way to tile a wet/shower area against an exterior wall in the basement. According to the technical description (building permit documents) I received from the previous owner who built the house in 1980, the exterior walls are made of lecablock and concrete hollow blocks. Coated with cement mortar twice and asphalt-plastic varnish on. Then the drainage is 1 strand of 4" drainage pipe with guiding rings. I've tangled up in all sorts of solutions for how to do it but which is the safest and best?
2. Then for 1 of the other walls which are partly plastered lecablocks and plain lecablocks, how should they be done? Frame + plasterboard or plaster what's left to plaster? (half of the space was intended as a sauna and unfinished, hence no plaster partly on half)
2. There's also a ventilation duct straight out, should it be kept? I have a heat exchanger that also takes air from that room.
3. Then I have another question regarding the painted concrete floor in the laundry room, which is also in the basement. I've tried to remove the paint on the floor but no matter what I do, it seems unmovable I've used a sander to remove glue remnants from a vinyl flooring that had been in place over the years, but the paint didn't seem even scratched by all the sanding. So I tried the angle grinder and the flap disc but much the same result, then I put on a diamond grinder but nearly the same there. Nothing happens with the paint! :S So then to the question. Is it possible to lay tiles and moisture barriers without removing the paint?
4. Are the correct moisture barriers to use when it becomes time primer + rubber compound then adhesive and tiles?
Many questions, but I would be eternally grateful for some tips and advice d^_^b
Attaching a picture of how it looks.
I have a few different questions that I hope you can help clarify.
1. I've read and read but mostly just get confused about the best way to tile a wet/shower area against an exterior wall in the basement. According to the technical description (building permit documents) I received from the previous owner who built the house in 1980, the exterior walls are made of lecablock and concrete hollow blocks. Coated with cement mortar twice and asphalt-plastic varnish on. Then the drainage is 1 strand of 4" drainage pipe with guiding rings. I've tangled up in all sorts of solutions for how to do it but which is the safest and best?
2. Then for 1 of the other walls which are partly plastered lecablocks and plain lecablocks, how should they be done? Frame + plasterboard or plaster what's left to plaster? (half of the space was intended as a sauna and unfinished, hence no plaster partly on half)
2. There's also a ventilation duct straight out, should it be kept? I have a heat exchanger that also takes air from that room.
3. Then I have another question regarding the painted concrete floor in the laundry room, which is also in the basement. I've tried to remove the paint on the floor but no matter what I do, it seems unmovable
I've used a sander to remove glue remnants from a vinyl flooring that had been in place over the years, but the paint didn't seem even scratched by all the sanding. So I tried the angle grinder and the flap disc but much the same result, then I put on a diamond grinder but nearly the same there. Nothing happens with the paint! :S So then to the question. Is it possible to lay tiles and moisture barriers without removing the paint?4. Are the correct moisture barriers to use when it becomes time primer + rubber compound then adhesive and tiles?
Many questions, but I would be eternally grateful for some tips and advice d^_^b
Attaching a picture of how it looks.
I also wonder if one should have a moisture barrier at all if having a bathroom in the basement. What is it that you want to protect against moisture? Basement walls are quite damp anyway (especially exterior walls, drainage notwithstanding)
BKR's industry regulations state:
"According to the existing Industry regulations, all floor and wall surfaces in a wet area that meet any criteria as described above must be provided with waterproof layers. However, normally floor and wall surfaces in basement areas or equivalent, where the substrates have direct ground contact, should not be provided with waterproof layers."
At the same time, I seem to recall reading somewhere, in some brochure or installation instructions from Isodrän, Pordrän, or some similar supplier of external basement insulation, that they believed that if you insulated with their product, you could or should have a moisture barrier in a potential wet room on the inside. But I'm not able to find that information again right now, so I'm a bit unsure.
"According to the existing Industry regulations, all floor and wall surfaces in a wet area that meet any criteria as described above must be provided with waterproof layers. However, normally floor and wall surfaces in basement areas or equivalent, where the substrates have direct ground contact, should not be provided with waterproof layers."
At the same time, I seem to recall reading somewhere, in some brochure or installation instructions from Isodrän, Pordrän, or some similar supplier of external basement insulation, that they believed that if you insulated with their product, you could or should have a moisture barrier in a potential wet room on the inside. But I'm not able to find that information again right now, so I'm a bit unsure.
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If I'm not mistaken, waterproofing is usually applied to uninsulated floors/wall surfaces that have ground contact in areas exposed to a lot of water (such as near a shower). The parts that aren't exposed to water splashes benefit from being able to "breathe," so waterproofing is skipped there. f0u, I suggest you take a look at BKR's regulations. They are available for download at www.bkr.se and are written in a way that even a non-professional can understand.Farzan said:
No, I mean I don't know, but I think there shouldn't be a moisture barrier.f0u said:So you mean that it should be okay to install a moisture barrier against that wall?. But should I apply plaster or putty to smooth out irregularities first on that wall with leca?
I checked BKR 07:1 and 10:1 out of pure curiosity.Farzan said:
In 07:1, section 2.1, it states:
When floor and wall surfaces, without underlying/external thermal insulation, are in direct contact with the ground and where water/moisture intrusion may occur, the regulations allow exceptions from the above requirements, see fig 1. The extent of the waterproofing can here be limited to floor and wall surfaces with heavy water exposure, for example, shower area. On other surfaces in direct contact with the ground, waterproofing is normally not applied. Exceptions are prescribed in the construction documents. This assumes that the floor and wall materials entirely consist of mineral material that can withstand moisture exposure.
In 10:1, section 2.2, it states:
When floor and wall surfaces, without underlying/external insulation, are in direct contact with the ground and where water/moisture intrusion may occur, the regulations allow exceptions from the above requirements, see fig 1. This issue is common when renovating older houses. The extent of the waterproofing can here be limited to floor and wall surfaces with heavy water exposure, for example, shower area. Other surfaces in direct contact with the ground can be exempted from waterproofing requirements. Exceptions are prescribed in the construction documents and assume that the floor and wall materials entirely consist of mineral material that can withstand moisture exposure.
They essentially say the same thing. I can't interpret it as anything other than that you should apply waterproofing where water is splashed around.