Plaster in unheated room/conservatory

[Murdoc12]

Hi.

Looking for some clarity regarding moisture levels in gypsum.

How would it work to install such in an insulated sunroom (as a partition wall between two sunrooms) that will not be heated consistently.

Relative humidity will occasionally rise above 80-90% but the rooms are ventilated and insulated.

Experiences?

 

[tergo]

Plaster has an ability to attract moisture, should the wall be painted?

 

[Murdoc12]

We were thinking of a couple of layers of paint.

We are considering using some gypsum such as fermacell fiber gypsum or something more "moisture-resistant" than regular gypsum.

 

[Mikasw]

Look at cement-based boards