The air inlet in many dairy barns is a curtain system along the sides of the building. The curtains provide large openings to keep cows cool in warm weather, while regulating incoming air for a draught-free, comfortable temperature in winter.
DeLaval Ventilation Curtain
This curtain always remains tight, to reduce wind noise and impact. It lowers from the top on a cable and winch system, rolling onto an aluminium tube which is attached to the bottom of the curtain. May be installed on new or existing buildings and controlled manually or automatically.