The invention refers to a specialised plastic film for covering agricultural crops, the purpose of which is to facilitate ventilation of the covered area and, through ventilation, to assist in the reduction of the internal temperature when it exceeds the limits, and also to facilitate the release of moisture from the covered area without allowing for the inflow of rainwater, and to allow for the renewal of the air in the covered area. It consists of two plastic films, the top (2) and bottom (3) film, which are joined by repeated adhesions (6a and 6b) along their length, preferably linear adhesions, and have recurring ventilation holes positioned in such a way that none of the holes (4) in the top plastic film (2) coincide fully or partially with any of the holes (5) in the bottom plastic film (3): Each hole or transverse row of holes in the one film is positioned between two holes or transverse rows of holes in the other film.
