Experience with renovating old building condominiums

If you really want pure lime, then have them tell you the product they use. Usually, these are lime-cement plasters. Make sure it is hydraulic lime (not air lime, which loses its alkalinity and thus what makes it mold-resistant)... but maybe you have already dealt with that anyway.

Thank you for the detailed feedback. Regarding different lime plasters and fillers, I have indeed started researching – but the amount of different information is naturally overwhelming for a beginner. Therefore, I have not yet finally decided whether I want *pure* lime plaster or if a lime-cement plaster would already suffice for our intended purpose. I have read that cement lime is less alkaline and therefore the mold-inhibiting effect is lower – but also that this claim is exaggerated. I am an amateur and do not know which statement is correct. Do you have any opinions on this from your side?

Maybe it is really a matter of belief. We relied on pure lime, but who knows if lime cement wouldn't have done the same. You just shouldn't pay a significant premium for supposedly great lime plaster compared to "plain" lime cement and end up with the same thing on the walls anyway.

Regarding different lime plasters and fillers, I have actually started researching - but the amount of different information is of course overwhelming for a beginner.

Quick side question: Why are you focused on lime?

Quick side question: Why are you fixated on lime?

It was the clear recommendation of a (removed) well-known building expert, especially for old buildings. According to information, alkaline and therefore very good against mold fungi.

It was the clear recommendation of a (removed) known building expert, especially for old buildings. According to information, alkaline and therefore very good against mold fungi

So only through third parties without reference to the specific object and condition. Okay...

You can do it, but you don't have to. With almost absolute certainty, there are no differences to gypsum plaster, since you have a core-renovated (albeit from the 90s) place.

Hello everyone,

a little update on our project.

We are currently diligently removing wallpaper and taking down the ceiling suspended with wooden paneling.
Regarding this, a question:
What is the most effective way to remove the nailed wooden supports of this suspended construction?

Background:
The entire construction is nailed. When removing it, we naturally want to damage the ceiling and the masonry as little as possible.
These supports (see picture) are fastened with 9 cm long nails – 5 such nails per support.
Prying an entire support out in one piece with a crowbar unfortunately doesn’t work on the ceiling – the ceiling is too soft (old wooden beam ceiling + reed, etc.).

I used a chisel to carve out some wood around the nail and then painstakingly pried the nail out as far as possible with small pliers so that my crowbar had enough grip to pull the nail.

In total there are 20 of these supports. So that’s 100 nails to pull out. :eek:

There surely must be a better way. Do you have any ideas?
Multitool, drill, chisels of different sizes, large crowbar are available – but I’m happy to expand my repertoire :)

Thanks!