I made an experimental, nearly maximum sized (13x13 interior) greenhouse using the VS Roofing mod to test the viability of using roofing for some of the walls. I used quartz glass for the roofs for visibility, but clear glass would probably look better. It seems to function perfectly as a greenhouse, though the blocks directly under the lowest tier of glass walls (roofs?) can't be tilled, so I replaced them with ashlar bricks. I included paths out of personal preference, so it can fit up to 128 plants in its current configuration. I'm sure it's possible to make a dome-shaped greenhouse with the mod, too, but I haven't tested it yet.
