Hi all, I purchased this coop kit http://www.precisionpet.com/detail.aspx?ID=191 from our Murdochs store. It is going to go into a 20 x 20 run that hopefully will be sufficiently predator proofed. (still working on it!) I'm now learning about ventilation and drafts and the little door you see there has plenty of room around the sides that I can see will allow quite a bit of draft. I'm guessing I can use that foam window seal around it, but will the chickens peck it out or eat it? Is there something better to seal it with? Also, the front door where he ramp goes up, doesn't have anything to close it off. Should I make a real door that can be closed off, or can they learn to use a doggie type plastic door that they can push through? Any tips are welcome!