Hello everyone,
I have a question for the building experts regarding interior plaster. Unfortunately, we have not yet found a well-founded opinion on this.
In our preliminary building specification (contract not yet signed), it states that the interior walls are to be finished with gypsum plaster.
When our building plans became more concrete, I also got some literature. From the book "(K)ein Pfusch am Bau: Wie ein Bausachverständiger (s)ein Haus richtig und dennoch kostengünstig bauen würde“ by Günther Nussbaum-Sekora (which I find really good as a layperson), the following quote:
[ I]Due to my inquiry (note: building surveyor), the building quality could already be improved before the first ground-breaking.[/I]
[ I]According to the building specification “interior plaster machine application”[/I]
[ I]What was meant was the cheaper and moisture-sensitive gypsum plaster. It was upgraded at no extra cost to lime plaster. The high pH value of lime (>12) prevents microbial growth.[/I]
End of quote
In addition, we will be building with Ytong blocks and installing a ventilation system.
So now my question to you is:
Does anyone have experience with this?
Are there other aspects besides microbial growth that would speak for or against lime plaster? (e.g. problematic texture, more difficult application or finishing, paintability, wallpapering issues, moisture sensitivity, or similar)
(where I understand the purpose of lime plaster is to absorb moisture better)
If you support using lime plaster, would you use it throughout the entire living area as interior plaster or only in wet areas (bathroom, kitchen, utility room)?
If my assumption is correct that lime plaster absorbs moisture better – does this still make sense if a ventilation system is installed that already removes room humidity?
Thank you very much for your answers
f-pNo
I have a question for the building experts regarding interior plaster. Unfortunately, we have not yet found a well-founded opinion on this.
In our preliminary building specification (contract not yet signed), it states that the interior walls are to be finished with gypsum plaster.
When our building plans became more concrete, I also got some literature. From the book "(K)ein Pfusch am Bau: Wie ein Bausachverständiger (s)ein Haus richtig und dennoch kostengünstig bauen würde“ by Günther Nussbaum-Sekora (which I find really good as a layperson), the following quote:
[ I]Due to my inquiry (note: building surveyor), the building quality could already be improved before the first ground-breaking.[/I]
[ I]According to the building specification “interior plaster machine application”[/I]
[ I]What was meant was the cheaper and moisture-sensitive gypsum plaster. It was upgraded at no extra cost to lime plaster. The high pH value of lime (>12) prevents microbial growth.[/I]
End of quote
In addition, we will be building with Ytong blocks and installing a ventilation system.
So now my question to you is:
Does anyone have experience with this?
Are there other aspects besides microbial growth that would speak for or against lime plaster? (e.g. problematic texture, more difficult application or finishing, paintability, wallpapering issues, moisture sensitivity, or similar)
(where I understand the purpose of lime plaster is to absorb moisture better)
If you support using lime plaster, would you use it throughout the entire living area as interior plaster or only in wet areas (bathroom, kitchen, utility room)?
If my assumption is correct that lime plaster absorbs moisture better – does this still make sense if a ventilation system is installed that already removes room humidity?
Thank you very much for your answers
f-pNo
I looked it up again. In the thread "Which Smooth Plaster for Interiors," you referred to gypsum plaster as waste and said gypsum has no place in construction. So my question is whether you still hold this opinion and why or why not? You haven't argued this way here, so that's why I'm asking.
S
Sebastian7923 Nov 2015 15:23Yes, I believe gypsum plaster on walls and floors is no longer appropriate due to moisture-related issues. However, I wouldn’t want to impose this opinion on anyone.
S
Sebastian7923 Nov 2015 15:57Yes, that has played a very important role.
We have lime-cement plaster. It looks extremely smooth and is supposed to be painted directly with silicate paint.
However, it was somewhat more expensive (I think this was also because it was done by a different company – quality sometimes really does cost more) – in my opinion, it was definitely worth it.
However, it was somewhat more expensive (I think this was also because it was done by a different company – quality sometimes really does cost more) – in my opinion, it was definitely worth it.
S
Sebastian7923 Nov 2015 16:23Extremely smooth? Was a finishing plaster applied?