Looking through the foundry building to the layout after spraying the interior black. I can see some light leaks now that its painted on the interior.
My layout has five structures that will be located between the edge of the layout and the tracks. I have built one of them so far. There are a number of ways that this can be tackled by modellers to make them look good. You can put a false back on so the fascia board extends to close it in, you can build full, detailed interiors, or you can make them see through “shadow boxes”. I am going with the shadow box/theatre staging version of making them see-through. I don’t really know what the interiors looked like, and they are all slightly compressed and the widest is about 1 inch deep. That doesn’t make for great model space, and I think, as you can see, it creates a bit of a shadow box effect. I don’t have “glass” in the windows yet, as I still have to paint the window frames on the finished building side, so I can’t glaze them. I think the effect of looking through a shadowbox building will be really interesting and less distracting than made up interiors.