What kinds of perforated flooring materials are available?
Producers can choose between perforated ducts or perforated flooring. The perforations must be sized to prevent the seed from passing through. The material should be at least 10 per cent perforated. The amount of perforated floor or duct area should be sized so that the air velocity through the total perforated area is less than 0.15 m/sec. Floors and ducts may be fully perforated or partially perforated. Fully perforated flooring allows the greatest flow of air and the best air distribution and provides the best means to facilitate drying or temperature alteration. Partially perforated systems may restrict airflow and reduce or affect the air distribution.
