We are building our coop this weekend. It will be 6x8 with 4' high side walls. The ends walls will be taller for they will peak in the center. Anyway, we have 2 double hung windows that are 3x3. One window will go on the side wall (4' high). Should we install it upside down so that the air flow is higher when open? Otherwise the window will be 1' off the ground and that lower part will open. Thanks for your imput. Amy