The glasshouse has a core including bands (2) with vertical posts (21) connected between their upper ends, where the posts support triangular arc-shaped arches (23) at the ends. The bands are connected together by longitudinal gutters (3). The arches support an aeration opening (4) on the gutters and cover a covering wall e.g. inflatable double wall, formed of transparent plastic material film, where dimensional ratio of deflection (F) of the arches to distance (L) of the bands is lower than or equal to 1.5 such that an opening end extends a band`s ridge (231) in an opening position.
