Ventilation system
A free range house may be ventilated mechanically,
naturally, or by a combination of both systems.
Fundamental to any system is the need for finely
adjustable air inlets, usually at eaves level on both sides
of the house, and outlets in the apex of the roof – the
ridge. However, some houses may be cross ventilated,
with inlets one side of the building and the extractor
fans on the other side.