24 Aug '11, 7pm
These greenhouses are beautiful! Love the track to move seedlings from outside to insulated indoors
The other greenhouses, like experimental greenhouse 1980, I was designing for the mass market. I was experimenting with growing plants in a cold climate. it was built with 2x4 and plywood and sprayed with foam on the outside to insulate. there were two layers of corrugated translucent plastic and in between was a blanket that rolled in between the airspace at night and rolled to the back in the daytime.