All you really need is a roof/floor to make it work.
Anyway if temperature is not a concern (Too cold) and rain is a concern (IE anywhere tropical) this system has proven useful. i got this done 4.5 years ago and still doing great!
when its rainy roll the plastic down, when it clears up roll it up.
if you need mor epics of how this is built let em know, but the idea is rather basic. have a roll of plastic around a heavier metal bar (this will roll down via gravity). attach the top to the ceiling and place a coupe of guides down either side (in a bit). attach rope to pullies and bam. actaully you could use all kinds of materials for it like wood and tarp if you dont need clear. but if your in a windy area, metal is key
materials needed
Guide bars on each side and on both sides of plastic = x4 the height of area to be covered.
plastic of whatever size needed. tarps work as temps but dont let light through and the sun eats tem within a year or 2...
a heavyy bar for bottom of plastic to allow to unroll.
3 pullies
rope
screws/bolts etc depending what your fastening it all to.
it is basicaly the exact same idea as the bamboo shade blinds you see in stores, except your using plastic instead of bamboo strips.
not good for cold, but great cheap way of protecting "outdoor" plants when it gets WET.
hope it gives some people some ideas
