9#Anniehui: i. z8 c% K, e+ c) u2 e
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Is it your greenhouse ? Look like it is a kind of transparent sheet attached to the wood frame, not glass or anything, right?
13#ceramistpalace 5 g! H. j7 i- N$ [1 @2 s \* S& H2 Q, ~/ m" k3 H" S5 O8 w- P& a# _- k, u& W4 H; r
It's two layers of greenhouse plastic that is inflated with air.
8 J2 k* W" n' p1 K# S6 B 7 P3 W: a% j- d$ K. e' \0 I/ YMy 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.