9#Anniehui 8 n6 r- S8 x+ D9 I$ l1 \. b5 V) N& T" {$ B# g( ~
Is it your greenhouse ? Look like it is a kind of transparent sheet attached to the wood frame, not glass or anything, right?
9 m* w; L$ D9 v. H- i0 y9 J& E ' h' G* d6 Q- W* A: U5 wMy 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.