Very nice! Glad about it being lead free too.
Hardware cloth over all the window openings, very well secured, agree about soffit and gable end ventilation, which can be open all year.
Also hardware cloth over the window on the door.
Light bulb protection of some sort; birds will fly into them...
I think that my old coop would melt if I tried to wash the interior, especially with a power washer! Just vacuum it off, wipe gently, and then stain, whitewash, or paint it. That peeling paint is the biggest problem you have there.
DE is not a good thing to use! It's nearly ineffective, and...
Have you tested that old paint for lead?!? Until that comes back negative, don't mess with it! Lead test kits are available fro home testing, get one first.
Mary
Favorite breeds; so many choices!
Chanteclers, an original Canadian breed!
Speckled Sussex, very interactive and beautiful, having a single comb, but the hens will be okay.
Easter Eggers, so many colors, small combs, and green or blue-green eggs usually.
Wyandottes, so many beautiful colors...
What worries me about that ceiling, is the wonderful rodent haven it could be! I think taking it down is a good idea, and then those boards can be reused somewhere.
Rodent poo and urine? Wear gloves, at least!!! It's nasty stuff!
Mary
I love your future coop!
If those windows face south, it's perfect! You will want them to be opened on the top, probably all year, for ventilation. Big vents in the upper sections of the walls, with those louvered vent covers, will keep rain and snow out, and all windows opened in spring...
Welcome!
I would first, test that old paint for lead!!! You don't want to mess with lead paint, and you don't want your chickens eating it, or in it at all! Also, old buildings generally have lead paint on them, so the dirt nearby has lead in it, and again, chickens will pick this up, and...