As promised, I'll actually finish this model. Well, except perhaps for some weathering.
Anyway, next up was the roof. I started by measuring 3 scale feet up the roof with my HO scale caliper.
This gave me a line to work with. I used paper medical tape for the roofing material, we always have a lot on hand for our daughter, Emily.
I put the tape a little above the line so there will be some overlap. I marked it along the corner with pencil, then cut along those lines. I left it long so I could trim it after it was attached to the roof. I used Aleene's full strength so I wouldn't have to rely only on the stick of the tape.
I used the same basic process for the peak of the roof.
I then measured out strips for covering the corners.
I painted the roof with a spray can of Rustoleum Flat Black Primer, and hand painted the stack with Citadel Chainmail, which is essentially a black/silver mix.
I then made the storage box from .060" styrene, and covered it with 2"x6" boards and painted with the same Tamiya Dark Earth as the tower. I actually made it too tall, so I used another Dick Otto technique and sanded off 6" with 60-grit sandpaper.