ᐅ Is a fine plaster finish (Q2 lime-cement or gypsum) sufficient for living spaces?
Created on: 17 Nov 2017 10:13
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DennisK
Hello everyone
I am currently trying to familiarize myself with the topic of house construction and keep coming across some confusing questions. For example:
I have a building specification that states all living rooms will have fine plaster (quality Q2 cement-lime or gypsum plaster) applied to the walls. Nowadays, it is common to use plaster instead of wallpaper on walls. Would this type of plaster be suitable for that purpose, or does it require additional treatment, such as a different kind of plaster? Or does it definitely need to be painted or wallpapered afterward (the walls are intended to be white anyway)?
If a different type of plaster is needed, can it be applied directly, or does the fine plaster always have to be used as a kind of base coat?
I am currently trying to familiarize myself with the topic of house construction and keep coming across some confusing questions. For example:
I have a building specification that states all living rooms will have fine plaster (quality Q2 cement-lime or gypsum plaster) applied to the walls. Nowadays, it is common to use plaster instead of wallpaper on walls. Would this type of plaster be suitable for that purpose, or does it require additional treatment, such as a different kind of plaster? Or does it definitely need to be painted or wallpapered afterward (the walls are intended to be white anyway)?
If a different type of plaster is needed, can it be applied directly, or does the fine plaster always have to be used as a kind of base coat?
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nightdancer20 Nov 2017 13:57What is considered Q2 in one place may already be Q3 or only Q1 elsewhere; unfortunately, there are significant differences.
I’ll join the conversation. We also have Q2 (machine-applied gypsum plaster, I believe) and plan to just prime and paint.
The surfaces themselves look quite smooth to me. The question is what to do about any possible “defects.” Here and there, there are some small dents, but these mostly come from subsequent trades. If I patch these spots with, for example, ready-mixed filler, the area will be macroscopically smooth but may have a slightly different texture. How will that look after painting?
The same applies to spots where there isn’t a dent, but something on the surface that you would sand down again. The sanded areas are certainly smoother than the original plaster, right? (Although the original plaster doesn’t seem very coarse to me either.)
Does anyone have some example pictures for this?
The surfaces themselves look quite smooth to me. The question is what to do about any possible “defects.” Here and there, there are some small dents, but these mostly come from subsequent trades. If I patch these spots with, for example, ready-mixed filler, the area will be macroscopically smooth but may have a slightly different texture. How will that look after painting?
The same applies to spots where there isn’t a dent, but something on the surface that you would sand down again. The sanded areas are certainly smoother than the original plaster, right? (Although the original plaster doesn’t seem very coarse to me either.)
Does anyone have some example pictures for this?
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hemali200320 Nov 2017 14:18HAL06120 schrieb:
I’ll join the conversation here. We also have Q2 (I believe this is gypsum machine-applied plaster) and plan to only prime and paint.
The surfaces themselves look quite smooth to me. The question is what to do about any possible "defects." Here and there, there are some dents, which usually come from the following trades. If I repair some areas with, for example, ready-mixed joint compound, the spot will be smooth but might look slightly different in texture. How will that look after painting?
The same applies to spots where there is no dent but something on the surface that would be sanded down again. The sanded areas will certainly be smoother than the original plaster, right? (Although the original plaster doesn’t seem that coarse to me.)
Does anyone possibly have some example pictures?That was exactly our problem as well. The plasterers only made it worse with their patching. That’s why we fully skim-coated it with fine joint compound. Now we’re probably somewhere between Q3 and Q4.
I can’t imagine that this patchwork with coarse plaster and fine joint compound looks good...
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