Why hoops instead of A-frame or other shapes?
I'm thinking about ways to winterize some of my raised beds, and I was wondering why hoops seem to be the most popular way to go. Is there something important about that shape, or is it just easier/cheaper to make them? In some ways, A-frames seem easier because you can use plexiglass sides, no snow buildup etc.
Also, might be a dumb question, but: Years ago I went to an art exhibit in winter and one of the "pieces" was an outdoor glass room - it was 4 sides of glass and no ceiling/roof (ceiling was open air, in other words). I remember it was toasty warm in there even without a roof, (at least during the day when I was there).
An open roof design, seems to me, could be useful in the garden in terms of not needing to vent or provide water (& maybe fewer bug issues). But could it actually be effective for keeping the garden warm enough, at least for more cold hardy crops?
curious to hear your thoughts....