4 ms·

Unless you're using a speciality paint, latex is too porous (for vapor, not liquid water) and gypsum too large a chemical potential well.

• sonofhans 3y ago
  Yeah, “properly” was doing some work in my response :) It helps to use a glossy paint, and to put that over wet-environment primer on top of wet-environment drywall.
  • thsksbd 3y ago
    Cool. Rhanks for the reply