A screen installation comprising a screen cloth assembly (22) with a screen cloth (7) and at least one flat strip (21) fastened to the screen cloth, as well as screen sections (8, 18), to opposite edges of the screen cloth, at least one screen section of which has an undercut chamber (20) and a longitudinal opening (23) that opens into this chamber, wherein the strip is accommodated in the chamber of the at least one screen section so that the screen cloth fastened to it can extend outwards from it through the longitudinal opening of the screen section. The strip (21) is fastened at a distance from the adjacent free edge of the screen cloth (7) in the form of a free screen cloth flap (19). The screen cloth flap extends from the strip and via the longitudinal opening (23) of the at least one screen section (8, 18) outwards from it.