ᐅ Interior plaster with gypsum plaster Q3 - Is it susceptible to moisture?

Hello,

we are currently dealing with the interior plastering.
Since we want a very smooth surface, we have opted for gypsum plaster Q3 (€14.80 net), and lime-cement plaster in the bathrooms (€17 net).

Are there different types of gypsum plaster (regarding permeability or similar)? We plan to paint over it afterward (no wallpaper or similar).

What do you think?
Some say gypsum plaster is very sensitive to moisture, while others claim it provides an excellent indoor climate.

An alternative would be to use lime-cement plaster throughout (more expensive) and then skim coat — but that seems like double work, doesn’t it?

Thanks & regards

martinkl

To make things even more complicated

Have a look at clay plaster. It absorbs and releases moisture very well. Unfortunately, we only have clay plaster on the upper floor because we did that part ourselves. On the ground floor, regular plaster was applied to the masonry.
However, clay is also more expensive...

Clay plaster, but only if dug during a full moon and sealed with a shaman’s mark. Otherwise: yes, gypsum plaster is not suitable for wet rooms. Otherwise, it has been proven countless times. Smooth, inexpensive, absorbs moisture and releases it again if painted with breathable (diffusion-open) paint. Karsten