Have you tried cutting out the floor of a Dept. 56 building to paint the inside of walls and roof to stop them from glowing?

Are they the type made from "rock-like" plaster material?  If so, I've tried dremeling the snow off a couple of building roofs and it's like cutting into the hardest known substance known to man

Actually I did manage to get the snow off, but it left a very smooth surface, didn't look like any kind of roof I've ever seen.

Heck, give it a shot, what do you have to lose?

It would be better to use silver paint to block and reflect the light, black will absorb it. I learned that from an N-scale magazine article years ago, it worked. You can also paint a light color over the silver blocker, if preferred.

Another way, without cutting, would be to temporarily plug the windows with modeling clay from the outside, then pour a small amount of paint inside and roll it around to coat.

Dave

You can also Line the inside with aluminum foil. Use Walthers goo on the other side of the foil to make it stick to the plaster walls. Walthers Goo comes off easy with goo gone.