Hello!
I have moved into a multi-family house built in 1958, where some walls are made of Siporex. Since I moved in, I have been chasing a faint unpleasant smell, and it turned out that the smell is present in a few other apartments as well and is coming from the walls. (It is noticeable when I drill)
Would it work to paint with that type of paint that removes other odors? Should I paint first and then plaster over it?
Should we conduct a radon check in the building?
Kind regards, Lidande
I have moved into a multi-family house built in 1958, where some walls are made of Siporex. Since I moved in, I have been chasing a faint unpleasant smell, and it turned out that the smell is present in a few other apartments as well and is coming from the walls. (It is noticeable when I drill)
Would it work to paint with that type of paint that removes other odors? Should I paint first and then plaster over it?
Should we conduct a radon check in the building?
Kind regards, Lidande
Siporex itself does not smell. However, if there is mold in the construction, or if there has been, I understand that the smell can linger for a long time.
If it is blåbetong, there may be radon (but it does not smell).
If it is blåbetong, there may be radon (but it does not smell).
Well, I don't want to move. And it's probably not blue concrete, i.e., the radon-emitting one, the walls are completely white. It doesn't smell like mold, but neither does it smell fresh. The smell clearly comes from the wall material, and it is reportedly Siporex. So, can I seal in the smell with the right type of paint? Is any kind of plastic paint enough, or should I use special paint?
Hi Ciprex! I believe Ciporex is a rule in lightweight concrete. It can be difficult to access since it is built into the walls, and it may not even be desirable. The easiest way to get rid of the smell is probably to review the ventilation. And ventilate closets, bedrooms, and bathrooms that might have become stagnant. Replace the kitchen fan or clean the fan. And you may need to replace the surface material on walls and floors. For example, wallpaper and plastic mats that have absorbed the smell. If there are visible surfaces on Ciporex, they may need to be plastered with a suitable lime or cement plaster. A job for a professional. Best regards, PerOF
Likely mold in the wall structure due to embedded studs or similar. Difficult to fix without major interventions. You can paint with barrier paint, but you should preferably remove all old wallpapers and such first. I think you should contact your landlord about this since you shouldn't have to bear this cost. If it's a housing association, they are also responsible since the problem comes from the building's framework.