ᐅ Plastering and painting a utility room in the basement – recommended steps?
Created on: 18 Aug 2021 11:06
C
chamäleon
Hello,
our shell construction (concrete basement, Poroton masonry) is complete, the roof is on, and the windows will be installed soon. Before the installations begin, I would like to prepare the technical room in the basement. Since I am (still) a beginner, I want to start this work myself in the technical room, as aesthetics are less important here and I can gain some experience. The joints in the concrete ceiling should be filled and smoothed, and both the ceiling and the exterior walls painted. I understand that small holes might remain if the entire surface is not fully skimmed. The interior walls are made of Poroton and should be plastered with a base coat and then also painted white. The following questions have come up:
1. When is it possible to start the filling and plastering work considering residual moisture? How long should one wait? The basement ceiling was cast on 24.06.2021. The walls, especially at the lower areas, are still damp due to the wet weather conditions of the past weeks.
2. Which filler would you recommend for the joints in the ceiling? Rotband? Multi-Finish (universal)? Others? Is a pretreatment of the ceiling necessary? If yes, with what? Primer? Should it be applied to the whole surface or only the joints?
3. Which base plaster would you recommend for the Poroton interior walls? Gypsum? Lime? Others?
4. Which paint would you suggest? Emulsion paint? Silicate paint? Is any further pretreatment necessary on the plaster and/or concrete before painting?
Thank you in advance for your help.
our shell construction (concrete basement, Poroton masonry) is complete, the roof is on, and the windows will be installed soon. Before the installations begin, I would like to prepare the technical room in the basement. Since I am (still) a beginner, I want to start this work myself in the technical room, as aesthetics are less important here and I can gain some experience. The joints in the concrete ceiling should be filled and smoothed, and both the ceiling and the exterior walls painted. I understand that small holes might remain if the entire surface is not fully skimmed. The interior walls are made of Poroton and should be plastered with a base coat and then also painted white. The following questions have come up:
1. When is it possible to start the filling and plastering work considering residual moisture? How long should one wait? The basement ceiling was cast on 24.06.2021. The walls, especially at the lower areas, are still damp due to the wet weather conditions of the past weeks.
2. Which filler would you recommend for the joints in the ceiling? Rotband? Multi-Finish (universal)? Others? Is a pretreatment of the ceiling necessary? If yes, with what? Primer? Should it be applied to the whole surface or only the joints?
3. Which base plaster would you recommend for the Poroton interior walls? Gypsum? Lime? Others?
4. Which paint would you suggest? Emulsion paint? Silicate paint? Is any further pretreatment necessary on the plaster and/or concrete before painting?
Thank you in advance for your help.
bauenmk202019 Aug 2021 21:55Are you going to do the plastering yourself or taking on that trade personally? Is this a self-managed build?
I can’t say much about the plaster, except that you often read between the lines: “gypsum = bad” and “lime = good.” I think we have a “mixture,” at least I was told “lime-gypsum plaster.” According to the project description, it’s called a “mineral fine plaster.” Some recommend lime plaster for wet rooms.
For painting, you should use a silicate paint or silicate dispersion paint, since pure silicate paints are rarely available. I believe that’s a good choice to tick off “mold prevention in the utility room.” We have silicate paint on painter’s fleece throughout the house. But you need to be good at painting, or not do it as I did, using the same roller (which might not have been ideal for that purpose) and not being very economical with the paint. Then it will turn out well. As you say yourself, “practice makes perfect.”
I can’t say much about the plaster, except that you often read between the lines: “gypsum = bad” and “lime = good.” I think we have a “mixture,” at least I was told “lime-gypsum plaster.” According to the project description, it’s called a “mineral fine plaster.” Some recommend lime plaster for wet rooms.
For painting, you should use a silicate paint or silicate dispersion paint, since pure silicate paints are rarely available. I believe that’s a good choice to tick off “mold prevention in the utility room.” We have silicate paint on painter’s fleece throughout the house. But you need to be good at painting, or not do it as I did, using the same roller (which might not have been ideal for that purpose) and not being very economical with the paint. Then it will turn out well. As you say yourself, “practice makes perfect.”
C
chamäleon26 Aug 2021 19:16So, I got some advice. I was recommended the following:
- Akurit SK gray for filling the concrete joints
- Multifinish for the second coat to achieve a smooth transition
- For the Poroton wall, Akurit MEP-it for plastering
All materials I hadn’t considered so far. Can anyone share their thoughts on this? Does it seem appropriate?
- Akurit SK gray for filling the concrete joints
- Multifinish for the second coat to achieve a smooth transition
- For the Poroton wall, Akurit MEP-it for plastering
All materials I hadn’t considered so far. Can anyone share their thoughts on this? Does it seem appropriate?
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