Single gutter ventilation and ventilation above the ridge
•Optimal ventilation capacity
•Ideal greenhouse climate
•Perfect fitting profiles and tightly fitting seals
•Standard sizes: 8.00m, 9.60m, 12.80m and 14.40m
•Custom widths possible
•Drive mechanism by rack and pinion
Also available with rail mechanism with push and pull tubes, with the advantage: faster closing and opening, less maintenance, less shadow and better ventilation.