Opening in glasshouse, is fitted with insect screen, which is sealed by joint strip fitted between screen and rack, which operates opening frame

摘要

Opening is closed by a hinged frame (4), which is moveable by a rack (7) mechanism to pivot around an axis (6). The opening is masked by a sheet of material, which acts as an insect screen (15), and which is held between the roof ridge and the intermediate panel (3), located below the edge of the frame. A seal (21) is interposed between the screen and rack. It consists of a joint strip (22), centered on the rack and associated with a support (24), which provides a certain degree of freedom to follow the rack.