9#Anniehui 4 H- d- E0 P j2 V/ r6 m! ~$ H 4 D8 o, r+ i$ |* D$ FIs it your greenhouse ? Look like it is a kind of transparent sheet attached to the wood frame, not glass or anything, right?
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It's two layers of greenhouse plastic that is inflated with air.
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Is it a specific kind designed to hold air like a balloon? where it is available ?
- |% Y; ^. P! ~& p / Y$ _( F5 J2 IMy 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.