| 摘要 |
The device comprises a foil section (1) which engages under a roof ridge tile, which on both sides locates with its longitudinal edges parallel to the ridge on the roof covering tiles. The foil section on both sides of the ridge covering (4) has output and input air apertures of the rear ventilation. The longitudinal edges on their under side or upper side are weighed down and the rear ventilating apertures (27) on locating on the roof tiles are open. The longitudinal edges or the weightings have a wind force component effective in the pressure direction through aerodynamic formation. The weighting formations are wedge-shaped, and are arranged at the ends of prongs of a comb, cut out from the longitudinal edges of the foil section and ending outwards before the rear ventilating apertures. |
