I am getting ready to build a 4x8' coop. I was planning on using a 12/12 roof pitch, so that the coop will be 2' tall on the sides, and 6' tall in the middle. I just saw these cedar peak vents on Craigslist for only $10. The only problem is that the only 12/12 one is 60" long at the bottom, making it 2.5' tall. Now that would certainly give me lots of ventiliation, and I could cover the lower half with plastic or a board in the winter. The roost would be 2' off the floor, and the bottom of the vent would be at 3.5'. Would that be OK? I am also planning on having open soffits covered with hardware cloth, and I have a casement window about 16x40" for the side opposite where the peak vent would go. Will this cross the line from ventilated to drafty?
http://boise.craigslist.org/mat/1718536367.html
http://boise.craigslist.org/mat/1718536367.html