PROBLEM TO BE SOLVED: To provide a ventilating system of a cultivation greenhouse facility with which a device for daylight regulation and ventilation control and inabling insect proofing and deworming, is simply provided in a side face or gable-side face of a plastic greenhouse, and which is easy to operate.SOLUTION: The ventilating system of a cultivation greenhouse facility includes a movable roof part including: a plurality of round tubes laid in the house axial direction under a fixed beam and having slits in the axial direction； a plurality of movable beams parallel in a traverse direction and having a plurality of spherical bodies corresponding to the slits of the round tubes, the spherical bodies being loosely fitted in the round tubes and movably suspended； a coupling beam for coupling the movable beams with each other； a covering material for a movable part which stretched between the movable beams. The ventilating system of the cultivation greenhouse facility is configured so that an opening of the roof is opened and closed by moving the movable roof part integrally formed.【課題】本発明は、ビニールハウスの側面や妻面に、採光調節や換気調節ができ、また防虫や駆虫を可能にした装置を簡易に設置できて、しかも操作が容易な装置を配設した栽培用ハウス設備の換気装置を提供する。【解決手段】栽培用ハウス設備の換気装置であって、前記固定梁の下側にハウス軸方向に架設され、かつ、軸方向にスリットを有する複数の丸パイプと、横断方向に並列しており、かつ、前記丸パイプの該スリットに対応させた複数の球状体を有するとともに該球状体を前記丸パイプ内に遊嵌させて移動可能に吊設された複数の可動梁と、該可動梁同士を繋ぐ連結梁と、前記可動梁間に張設された可動部用被覆資材と、からなる可動屋根部を備えており、前記可動屋根部を一体として移動することにより屋根の前記開口部を開閉可能な構成にしたことを特徴とする栽培用ハウス設備の換気装置。【選択図】図１
