What do you guys think about using this
http://www.ebay.com.au/itm/NEW-GREENHOUSE-GREEN-HOUSE-PE-STEEL-WALK-IN-/321024711451?pt=LH_DefaultDomain_15&hash=item4abe905b1b&_uhb=1#ht_2106wt_1139
I want to grow outside (don't wanna have to buy lights, ventilation etc).
But this thing blocks UV rays...