ᐅ Are additional costs for lime plaster instead of gypsum plaster realistic?

Created on: 18 Nov 2019 15:20
K
kinderpingui
Hello everyone,

We have received a quote for a turnkey solid construction house. For an additional cost of about €13,300, a two-layer lime plaster would be applied inside instead of the standard gypsum plaster. The first layer would be a base lime plaster, and the topcoat would be a trowel finish plaster with a grain size of 1mm (0.04 inches).
The entire house has a gross volume of 878 m³ (31,000 cubic feet). This type of plaster would be used in all rooms except the utility room, technical room, and pantry, which together amount to about 50 m³ (1,765 cubic feet).

Is there anyone who can estimate whether this additional cost is realistic or significantly overpriced?

Thank you in advance.

Good luck
S
sauerland
23 Nov 2019 06:49
Exactly... I have two walls smoothed... That would probably be a level 3 finish for painting or wallpapering.

I had the rest done with a structured finish, among other reasons for cost savings...
H
hampshire
24 Nov 2019 10:19
We chose not to have the walls fully smoothed, as in this case we actually preferred the more affordable option. The clay plaster is from Lesando and is pigmented throughout in the desired color. Lesando offers a range of additives that can be mixed in. We opted for a straw additive.
The walls have turned out beautifully.

The combination of an affordable "painted wall" and a higher-quality plaster wall is a good idea.
M
michert
24 Nov 2019 10:31
Where does the general dislike of gypsum plaster in (layman) forums actually come from?
G
guckuck2
24 Nov 2019 11:03
michert schrieb:

Where does the general dislike of gypsum plaster in (layman) forums actually come from?

That’s misleading. 99% here will have gypsum plaster, but the discussion about alternatives naturally attracts its advocates.
H
hampshire
24 Nov 2019 11:10
I am not speaking against gypsum, but rather in favor of clay. My subjective comfort level is the deciding factor. Gypsum also regulates humidity, as long as it is not sealed off completely. Gypsum does not shrink either. Still, consider giving clay a try.
K
kinderpingui
3 Dec 2019 20:35
michert schrieb:

Where does the general dislike of gypsum plaster in (amateur) forums actually come from?

It’s probably exactly because we (in this case ME) are amateurs and might be influenced by sales arguments (although I can’t really say that we were actively sold on it). It is increasingly promoted that these plasters are more breathable and regulate moisture better. Then there’s always the buzzword “mineral-based.” We’ve now specifically looked into the additional costs for us. These come from the material being somewhat more expensive and the plaster being applied in two layers (which involves more labor). Also, this option would be done in the third quarter (Q3) instead of the second quarter (Q2). We have talked to many other homeowners again. Most younger ones and basically all homeowners around my parents’ age use gypsum and are happy with it. In the end, I think it’s always a matter of weighing pros and cons. For us, the extra cost is simply too high, so we’re sticking with gypsum.