I have already read a lot about lime, lime-cement, and gypsum plaster – I think clay is too expensive for us.
Some say gypsum plaster can be used, others say it must be lime plaster. The heating engineer we consulted criticized gypsum plaster as inert material. Our general contractor wanted to use lime-cement plaster everywhere but has now offered gypsum. It's a bit confusing. Should we insist on lime plaster? Does it really allow better breathability and improve the indoor climate? I would appreciate your living experiences.
Some say gypsum plaster can be used, others say it must be lime plaster. The heating engineer we consulted criticized gypsum plaster as inert material. Our general contractor wanted to use lime-cement plaster everywhere but has now offered gypsum. It's a bit confusing. Should we insist on lime plaster? Does it really allow better breathability and improve the indoor climate? I would appreciate your living experiences.
You are referring to lime-cement – that’s what our structural engineer meant as well. However, our plumbing company always specifically mentioned pure lime plaster. Does such a thing exist? Or is it uncommon? I have read that lime-cement plaster is not good because it cannot absorb water.
Stefan Ruhnau20 Mar 2015 15:15Normally, lime-cement plaster is used in wet rooms. There are also gypsum plasters that are approved for use in wet rooms.
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Bauexperte20 Mar 2015 15:22BeHaElJa schrieb:
You mentioned lime-cement – that’s what our construction manager referred to as well. However, our plumbing contractor always specifically talked about pure lime plaster. Does that even exist? Or is it uncommon? I’ve read that lime-cement plaster isn’t good because it doesn’t absorb water. I just don’t understand this discussion here ....? What’s so bad about gypsum or lime-cement plaster (by the way, you can only tell from the delivery note whether lime plaster or lime-cement plaster was used). Even very old oil-based paint absorbs about 3g of water per sqm (square meter).
People do exhale a lot of water vapor daily, and a lot of moisture is generated inside a house as well, but you shouldn’t go overboard trying to maximize diffusion .... Just let the mechanical ventilation with heat recovery do its job.
Just my 2 cents
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Bauexperte20 Mar 2015 16:01Statements like this will come up quite often; do you want to get stressed out every time?
If you are this easily unsettled, you should quickly bring an independent expert into the house building process. They will help you find the best compromise for you and your budget. You will still have to make the final decision, but you will be better able to distinguish between what makes sense and what doesn’t.
Best regards, Bauexperte
Bauexperte
If you are this easily unsettled, you should quickly bring an independent expert into the house building process. They will help you find the best compromise for you and your budget. You will still have to make the final decision, but you will be better able to distinguish between what makes sense and what doesn’t.
Best regards, Bauexperte
Bauexperte
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