Plaster

[Sumpter250]

I still like expanded aluminum gutter screen ( for keeping leaves out of the rain gutters...attach with staples, or small nails. The screen can be shaped, and holds its shape well ). I used to use newspaper strips in a 50/50 water/white glue mix. The strips are laid over the screen and allowed to dry thoroughly.
Semi-thin coats of Hydrocal are then painted/brushed over the strips.
I've found, that with the gutter screen, a single layer of plaster cloth makes a good replacement for the paper strips, and the plaster sticks well to it, especially if it is applied while the plaster cloth is still damp ( or has been misted with water to dampen it ).
In either case, the paper strips can be cut to any length, or the plaster cloth can be "cut to fit".
I used the paper strips on my old modules, and they have bounced around in the trailer, on the way to shows, over the past twenty years, with virtually no damage.
Because of the thin shell, buildings should have a good base to attach to, and trees should be planted with a "ring of sand" around the base, soaked in water/white glue to make a wide base....ground cover can be restored, after the "sand-crete" is dry.