Bulldog, that's great! That can be a year round greenhouse in the right climate, & my first one was covered with single layer corrugated fiberglass. But here, our winters & summers are extreme, couldn't heat/cool it due to no insulation. That made it un-usable in the peak of summer/winter. But if your seasons are extreme, there are ways around it. A dead air pocket insulates. You can cover it with one layer of bubble wrap (walmart sells it cheap by the rolls), then a layer of sheet plastic & be able to heat it just as well in the winter as you can the double walled grnhse covering. This is all clear, not milky. I've also made seasonal grnhses by covering the frame with chicken wire or fence wire for support, then cover that with with 6mil plastic. Comes in 20' x 100' sheets on a roll. After too many broken bones & arthritis whipped my ass & having to do everything by myself, I went with the double walled covering from the mega greenhouse store. It seems expensive at first, but over the years, being maintenance free & cutting heating/cooling cost by more than half, it pays for itself REALLY quick. I'm not kidding when I say the frame has rotted & these pannels are holding the whole thing together. With a little imagination & ingenuity, you can make a grnhse out of unexpected things too. I have an idea I'd like to share. I once read a story in a mag of a man who made a raft from 2 lt soda bottles. Used apoxy to hold them together & sailed around in the ocean a few months. That inspired this idea.... Clear apoxy them together, cap ends inside, bottoms out. Once its built, cover with 6 mil plastic, inside & out. Totally insulated, built from throw away materials. I just can't come up with enough bottles. My friend keeps throwing them away & calls me a hoarder. If you need 1, 000 bottles for a project, how the heck is 20 too many to have around? She thinks everything needs her approval & I refuse to tell why I need them, so maybe I'll gather enough to at least make a large coldframe. Hard for me to come up with enough bottles, considering I hate soda!
- Sorry for the long winded post, but I like sharing off the wall, totally unique ideas & repurposing what would otherwise be trash!