Device for securing plastics and fabrics in greenhouses, for greenhouses with a series of longitudinal and transversal profiles which make up the structure of the greenhouse, which comprises three pieces (1, 2, 3), preferably plastics, a first piece (1) of larger cross-section than the other two pieces (2, 3), is pressed to fit on a suitably shaped metal profile (4), whereon the plastic of the greenhouse has been previously disposed, so that the plastic is trapped between the profile (4) and the piece (1); a second piece (2) of smaller cross-section than the first is pressed to fit on the first piece (1) where the fabric has previously been placed; and a third piece (2) is also pressed to fit exactly on the upper free section of the second piece (2), this third piece (3) being the one that fastens the array of the device.
