9#Anniehui : }! E o2 x! u- q+ v# i! b- z- n0 Q+ I
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 ) u: ~9 B F3 I( y+ ^0 M' a+ r" P. t* f) g9 G" d" c! N% X5 \
Is it a specific kind designed to hold air like a balloon? where it is available ?
3 ^* S# X# l2 O+ ?0 a) z) q$ v( I % S F$ w' B' V4 ^) Z. OMy 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.