also! what did you mean in your article about painting with de and oiling the roosting bar?
how much distance, approximately, from the ceiling does the roosting bar need to be?
great idea!
I take a jar (ex-marmalade) and fill it half with diatomaceous earth , add water and keep stirring to get a fluid yoghurt/paint thick paste. I paint the roosts and surrounding walls with it. The walls in the nest boxes. Sprinkle in on the bottom of the nest-boxes and in the sand-bath spot I made for them in the run (under a 60° window that blocks rain and cold wind).
If you really want to alter the old greenhouse to make it into a coop you need to make continuous ventilation openings that are covered with hwc.
The greenhouse roofs are painted white with chalk here in summer to get less sun in.
Make a skirt with hwc or put pavement/bricks all around against predators.
A few ideas to make ventilation:
Maybe you can take windows out / change the whole door for ventilation? Use slats on both sides and connect them with hwc in between if the door/greenhouse frame is not suitable to screw into it.
Removing 1 or 2 windows from the roof is great for ventilation too. Imagine a sort of roofed hwc chimney for ventilation. Use 3x3cm or larger construction wood to build an open frame.
Or remove all the windows from the side where the rain almost never comes from. If you keep a sand floor there is no problem in case rain comes in.
In Ireland it doesn’t get very cold. The chickens only need a coop for safety and it’s nice to give them shelter for longevity. Wild birds survive cold and storms too.
In the Netherlands chickens can live outside in parks and in hedges too. As a group/tribe they flourish and multiply where some people have set them free and other people give the chickens extra food. Individual casualties are common bc of predators but I know of a park where they multiplied faster with chicks and dumped roosters .The real danger for the tribe as a whole was not the weather or predators but the noise of the roosters. When it got out of hand, people started to complain they can’t sleep. There was a lawsuit and ultimately the municipality had to cull them.