9#Anniehui : V+ E5 o/ U# n, Z o2 {* i& C$ R" iIs it your greenhouse ? Look like it is a kind of transparent sheet attached to the wood frame, not glass or anything, right?
15#ceramistpalace # a: ^$ \; x& F, x 2 f: H/ o: E/ ~/ w3 H; j/ U, Q9 _& z# |, R' w
My husband seals the plastic layers himself, then use a small fan to blow air between the two layers. The plastic can only be bought at Horticulture supply stores.