How to build a chicken coop
Step eight: Perch, mesh, ventilation
Add the perch as shown in the plans ('front elevation' on page five and 'side elevation' on page six). The perch can be supported by a 2" x 2" (50mm x 50mm) prop at one end and fixed to the lower part of the storage box at the other end with a joist hanger (or similar type of fixing bracket).
At the top of the side wall there will be a gap between the top of the wall cladding and the underside of the roofing boards. This gap can be covered with a suitable mesh or purpose-made vents. They can be fitted between the rafters and fixed to the top of the plywood exterior cladding.
A bit of paint and it's finished!
Different climatic conditions and environments may necessitate additions and/or variations to this basic plan. For example, in hotter climates the chicken coop may need to be insulated and have windows that can be opened. In colder areas the chicken coop may need to be insulated and have shutters that can cover any ventilation areas.
As stated at the beginning, the best type of information and knowledge available is local knowledge, so ask around.