1940's ceiling panels... what are these called?
We have a cottage in Connecticut that was built in the 1930's or 1940's. The ceilings need to be painted.
BUT. The ceilings are made of panels. Four feet by ten feet. A few years ago, we had to replace one, and we were told that these panels are actually a kind of heavy cardboard, popular at the time.
The guy told us the name of this material, this cardboard -- but now I can't remember what he called it.
Does anyone know?
I'm going to cross-post this question in the Renovation Forum, but I bet you guys have the answer before they do... : )