GREENHOUSES, FILMS FOR COVERING GREENHOUSES AND METHODS FOR STRETCHING OR TIGHTENING FILMS ON GREENHOUSES

摘要

The invention relates to a greenhouse (1) comprising roof bows (2) which are covered by at least one film (3), said film (3), or the main film if a plurality of films covers the roof bows, comprising at least one sleeve (4) in which a rod (5) is guided and thus fixed to the film (3). The sleeve (4) is longitudinally arranged over the entire length of the greenhouse (1). The invention also relates to a film for a greenhouse, comprising at least one sleeve (4) which extends over the length of the film (3) at a distance from the lateral edges thereof, and to a method for stretching a film over a greenhouse.