Should we use gypsum plaster

[Marguita Weckner]

We live in a house built in 1937. It previously had moisture damage, but it has now been addressed. The plaster has come off the walls. Since the house was built in 1937, the plaster on the walls is not of the best standard. Our building supply store recommended that we use gypsum plaster. Now we have received information from a knowledgeable good friend in the construction industry who says that it is not suitable to use gypsum plaster as it attracts moisture. Thank you if you can give us advice.

 

[Åsa Lund]

You should use hydraulic lime mortar or D-mortar. Not plaster.

 

[Marguita Weckner]

Thank you very much, it was so strange we got the tip from Karl Hedin to use gypsum plaster Now plastered a wall, then we have to discard that bag Again, thanks

 

[Stefan N]

Inside or outside of the wall?

 

[Marguita Weckner]

Inside or outside of the wall?

It's inside the basement
Thanks

 

[neo11]

If there is no moisture in the walls, you can use plaster, and it's also suitable to use plaster in bathrooms these days since there are such good waterproofing layers. However, you cannot use plaster outdoors or where there is a risk of moisture.

 

[neo11]

You should use hydraulic lime mortar or D-bruk. Not plaster

What is D-bruk?

 

[Åsa Lund]

What is D bruk?

https://www.se.weber/utforande/murbruksklasser

 

[neo11]

Regular lime mortar then. https://www.se.weber/fasad-puts-och...ystem/kalkbruk-kalkfarg/webercal-142-kalkbruk
Hydraulic lime mortar becomes much harder, so one cannot recommend both =).
https://www.se.weber/fasad-puts-och...uk-kalkfarg/webercal-148-hydrauliskt-kalkbruk

 

[Marguita Weckner]

Regular lime mortar then. [link]
Hydraulic lime mortar becomes much harder, so you can't recommend both =).
[link]

Thanks for the help