9#Anniehui ) z2 b! B' ]' Y9 h: b3 w: q( T/ O& o1 z
Is it your greenhouse ? Look like it is a kind of transparent sheet attached to the wood frame, not glass or anything, right?
2 w! E2 }9 M0 |% sMy 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.