9#Anniehui6 `+ b7 S$ x, O n6 K
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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 . \9 j! A" u+ L6 m! U( w* c ; B# `# j/ ] u: m: G; f( ]2 `5 l3 R$ r7 o/ `+ z
It's two layers of greenhouse plastic that is inflated with air.
15#ceramistpalace/ z3 y8 d7 R: i l; H. X
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! t" ?% t' O7 m, Y. V) uMy 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.