Ok, so here is my current Vanda shade house. It's getting replaced. Here's my thoughts and I was hoping to hear other's opinions on my plans. Buy a storage shed framing kit (http://www2.northerntool.com/tarps-covers-canopies-shelters/utility-sheds/item-18343-1.htm) and build a frame out of pressure treated 2 by 4s. Current structure is 10 by 10, kit can be made up to 10 by 22. During the summer I would have shade cloth on the frame and once the colder season arrives put on the greenhouse film. The film would be held on with U-channels and clips so it is completely removable. Stick an electric heater inside for the cold nights (keeping the vandas above 55 or 60 is the plan). Here in Orlando we usually will get cold weeks not months. I'm just tired of rolling in all the orchids every time it's getting under 55F. I also have another structure with all the other orchids which I would put in wagons and just roll into this new structure when the cold comes. Opinions? Suggestions? I appreciate any input as I plan on this next adventure!