ᐅ Sauna in the Basement / Painting or Plastering Concrete Walls, or Using Textile Plaster?
Created on: 8 Dec 2015 19:15
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bricktopdgpB
bricktopdgp8 Dec 2015 19:15Hello, I am new here and not technically skilled at all. Therefore, I would appreciate any tips you can give me on this topic. Sorry for the detailed explanation, but I hope it helps you get a clear picture.
I want to install a sauna in the basement of my house, built in 2013 and complying with the 2010 energy-saving regulations. The basement is insulated from the outside. There are no radiators in the basement.
My main concern is the basement walls. They are bare concrete walls, which I painted with breathable exterior wall paint when I moved in, believing at the time that there would be no sauna in the room.
The walls of course have the typical thousands of small holes common in concrete, which can be quite disturbing in a sauna room. I’m wondering how to make the walls look a bit more comfortable.
The walls are smooth enough; it’s just the thousands of small holes that are annoying. The basement is relatively damp. If the basement windows are closed for a few days, the humidity rises to about 75–80%. This obviously won’t improve with sauna use, so I have bought an electric dehumidifier that can reduce the humidity to 55% in about 2 hours for the roughly 25m² (270ft²) room.
The questions I have are:
1. Because of the humidity, should I use lime plaster, and are there colored lime paints available?
2. Is textile plaster suitable for a rather damp room?
3. Do I even need to worry about breathability for paints and plaster on the basement walls? Isn’t the moisture mostly coming from outside, meaning that sealing the walls against the outside is actually beneficial?
4. Is there a paint that can fill in such small holes in concrete (max. 1–2mm (0.04–0.08 inches) diameter, max. 0.5–1mm (0.02–0.04 inches) deep) so that plastering can be avoided?
5. Before plastering, do I need to remove the wall paint again?
Thanks very much for any suggestions!
I want to install a sauna in the basement of my house, built in 2013 and complying with the 2010 energy-saving regulations. The basement is insulated from the outside. There are no radiators in the basement.
My main concern is the basement walls. They are bare concrete walls, which I painted with breathable exterior wall paint when I moved in, believing at the time that there would be no sauna in the room.
The walls of course have the typical thousands of small holes common in concrete, which can be quite disturbing in a sauna room. I’m wondering how to make the walls look a bit more comfortable.
The walls are smooth enough; it’s just the thousands of small holes that are annoying. The basement is relatively damp. If the basement windows are closed for a few days, the humidity rises to about 75–80%. This obviously won’t improve with sauna use, so I have bought an electric dehumidifier that can reduce the humidity to 55% in about 2 hours for the roughly 25m² (270ft²) room.
The questions I have are:
1. Because of the humidity, should I use lime plaster, and are there colored lime paints available?
2. Is textile plaster suitable for a rather damp room?
3. Do I even need to worry about breathability for paints and plaster on the basement walls? Isn’t the moisture mostly coming from outside, meaning that sealing the walls against the outside is actually beneficial?
4. Is there a paint that can fill in such small holes in concrete (max. 1–2mm (0.04–0.08 inches) diameter, max. 0.5–1mm (0.02–0.04 inches) deep) so that plastering can be avoided?
5. Before plastering, do I need to remove the wall paint again?
Thanks very much for any suggestions!
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