Adjust ventilation so it coincides with the needs of the birds and house conditions. There is no need to over-ventilate, but be on the alert for any sign of stress that needs immediate attention. Excess litter moisture in the house requires valuable energy for moisture evaporation and removal. Eliminate Temperature Layers. Uncirculated air stratifies into temperature layers with the warmer air near the ceiling and cooler air near the floor.
Higher ceilings allow greater temperature variation between floor and ceiling.
Use mixing fans to circulate air and maintain a more uniform temperature at all levels. This mixing improves energy utilization by moving warm air to the birds' level. Increasing ventilation rate is often necessary to control house and litter moisture. This should only be done only during the warmest periods of the day. Moisture evaporation increases dramatically as the house temperature increases.