9#Anniehui ; G7 r/ z3 a# k% U7 P( n- z6 H6 q! ]+ X( I+ Q
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 + b$ @& Y/ b: g$ ?7 T( b% w, K% ?+ G' ~- C9 o) B d; Q# M4 R
Is it a specific kind designed to hold air like a balloon? where it is available ?
15#ceramistpalace8 I9 [$ u& X7 X. f
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3 R" o' B V# cMy 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.