9#Anniehui & L# l8 M* w; r / L# |+ J6 g2 p) a- v1 TIs it your greenhouse ? Look like it is a kind of transparent sheet attached to the wood frame, not glass or anything, right?
13#ceramistpalace & U+ Q3 i6 C2 u( C " T. W D& Z- C. l$ G" ^; l I8 v+ w" T; g1 ~4 u7 u' M
It's two layers of greenhouse plastic that is inflated with air.
15#ceramistpalace ' C8 f% P5 K: @) h! [9 c4 H" n' d' x' H% H; D1 U
9 E0 v0 b; _4 NMy 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.