Our coop is set so the roof pitches North. Heat wasn't a propblem with windows open in summer. They hold almost no heat (you said that wouldn't be a problem) so I'm going to enclose the joist cells with plastic.
Just adding fuel to the fire:
The methods used in keeping animals hundreds of years ago are much different than what we do now. Perhaps the most relevant thing to mention is coop design. I designed my coop based on what others have built and what I wanted in my back yard, I did not have the...
Heat is a concern right now because 14 of our birds are 8wks old. They were in a seperate structure until last weekend and we had been slowly bringing their temps down for several weeks. Right now they have a milk house heater and a 90w flood keeping the coop above 40F at night.
Water is less...
For those of you who have to heat your coop, what do you do when the power goes out? We live in an area where it isn't uncommon and our coop is powered by an adjacent property we own so even a generator would be a pain in the butt. I've got enough extention cords but it would be a pain to hook...
DE's efficacy for crawling insects is diminished when wet because intake is generally through the 'gills' of those insects or through dry contact. When taken internally by a bug it works, wet or not, but bugs don't eat DE by choice, they inhale it or crawl through it.
One more thing- adding a latch at the bottom (a type that coons won't figue out) will prevent varmints from prying the door open at the bottom. Think your door is strong enough right now in that situation? Think again.
Oh yeah, and don't forget tar paper underneath the sheet roofing. It helps keep air between the OSB and roofing material. Ask around, you might find someone with enough 'scrap' laying around.
You might think of adding some sheet roofing to the top to keep that OSB from falling apart. It is basically one big shingle on a roll, and would keep water from being absorbed by the top OSB.
I would watch to make sure that they figure out the new watering system. Make sure each on knows how to get a drink. If it doesn't work a regular waterer is cheap and looks like you've got room to add one.
I love the names! We too choose food names- Caesar, Pot Pie, Pattie, Alfredo, Curry...
Oh yeah, do what ever you can to retain the heat the birds make on their own and you make with the heater/bulb. Insulate well and block and drafts but maintain ventilation. The built in fan on the heater will help circulate air inside. Piling bales of straw on outside walls is cheap and...