9#Anniehui8 f2 h8 X' j! V( m4 b
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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?
14#Anniehui # y: P4 v& h9 U% b- r4 z* u 5 m; I( N0 h+ S6 ^( c6 ~) J, lIs it a specific kind designed to hold air like a balloon? where it is available ?
15#ceramistpalace & G7 T* K) R$ Z9 o ' h9 [% ^7 y- M4 Y6 Y( m+ e* g1 _ ~" x9 f' b1 L1 s1 x1 ?
My 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.