Hi. I am new to chicken raising and I am in just starting to build a chicken coop (going to the store today for 4x4 posts). I have been doing a ton of research this winter and I think I've decided on a lean-to box design. As I research ventilation I understand that many recommend over-ventilating to play it safe. What I don't understand is the proper ventilation in the winter and I had an idea. There doesn't seem to be much about winter ventilating ideas other than on the roof and yet the push is for no drafts. My ventilation idea is this: In the bottom of the coop floor, have 1-2 sections of J-shaped PVC so that the air is coming through the bottom (raised coop), going through the upside down J and then getting distributed just above the coop bedding. These seem like they could be useful to provide fresh air without draft in the winter and can be threaded underneath to cap off at the bottom when not needed. I perseverate on things so maybe I'm over thinking (this is part of the fun). Any thoughts? Thanks.