We seek strong lamina flow to reach the very centre of the shed to ensure thorough mixing which avoids chilling the birds.
For main ventilation¬†the inlets open to jet fresh air across the ceiling to the centre of the shed. This air is warmed and mixed with the shed air before returning across the birds. We use inlet velocities from 6 to 7 m/sec depending on the width of the shed.
Occasionally in summer the UK experiences spells of very hot weather. Humidity is usually high at this time negating the benefits of any evaporative cooling. Therefore we believe the best solution is to reverse the shed flow offering the birds wind chill from the freshest possible air over the shortest possible distance.