Adequate ventilation is absolutely crucial to successful growing under glass. You need plenty of roof vents, louvre vents, and automatic openers. The Rhino Greenhouse has two automated triple roof vents and two large seven blade louvres. All the vents work together to allow fresh air to circulate and cool the greenhouse. The autovents are very sensitive to changes in temperature. When a cloud goes overhead they will start to close the roof vents before you are even aware of the temperature drop. The autovents will control the climate far better than you could achieve yourself.
A single large pane of 4mm toughened safety glass is used in each side and roof bay, improving appearance (no overlaps to attract the dirt and algae) and making glazing a lot easier too. Wire clips are replaced by glazing beads running the full length of the glass. The beads not only look far more elegant they include a soft rubber squeegee edge to retain and seal the glass far more effectively. Cross Section of Rhino glazing system. The unique Rhino Glazing Bead, shown red here for illustrative purposes, firmly grips the edge of the glass, locking it tightly in place (view). The glass cannot be blown or sucket out of the frame, pushing on the glass only locks the beads more tightly into the frame (view).
12 to cover entire roof
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