A greenhouse system comprising a scaffolding structure, an isolation layer and a retracting device. The scaffolding structure comprises a plurality of columns, a plurality of beams, a plurality of top frames disposed on the beams, and a drainage groove disposed at a bottom edge of the top frame. The drain groove has a bottom groove wall, two side groove walls, and an inclined wall extending inward and downward from the side groove walls. The inclined wall has a connecting side connecting the side groove walls and a snapping side opposite to the connecting side. The insulation layer includes a fastening side fixed to the top frame and a rolling side extending to the drainage groove. The take-up device includes a scrolling shaft that connects the scroll side. The scrolling shaft can rotate in a first rotation direction to spread the isolation layer toward the inclined wall to be engaged with the isolation layer on the card abutting side, and the rolling shaft can be controlled to rotate in a second rotation direction to allow the isolation layer The roll is not stuck with the barrier layer on the card side.一種溫室系統，包含一棚架結構、一隔離層及一捲收設備。棚架結構包括多個立柱、多個樑架、多個設於樑架的頂架及一設置於頂架底緣的排水槽。排水槽具有一底槽壁、兩個側槽壁及一由側槽壁向內並向下延伸的斜壁。斜壁具有一連結側槽壁的連接側及一相反於連接側的卡抵側。隔離層包括一固定於頂架的固接側及一能延伸至排水槽的捲動側。捲收設備包括一連接捲動側的捲動軸桿。捲動軸桿能以一第一轉動方向轉動而讓隔離層往斜壁展開以連同隔離層卡固於卡抵側，且捲動軸桿能受控以一第二轉動方向轉動而讓隔離層捲收以連同隔離層不卡固於卡抵側。
