Hello Everyone! This past weekend we put up our chicken coop. we are also putting in furmeldahide free insulation in it top to bottom ,it has two windows,one on the east facing and one south facing. My question is should their also be vents ? And were should they go? I heard that if it's not vented properly my chickens could die next winter when we keep them up.I forgot to mention the coop is 8x16 and I will have about 16 to 20 chickens in it at one time. Thank You so much to all that help.