Excellent info. We tarp during winter but have adequate ventilation still. Never any chickens sick and they lay yr around. We also clean the coop (not my husband's liking) daily. Not an intense clean but you can't see poop when we're done. Also use pine shavings and we have no dampness or humidity issues. Our coop is almost always dry except when raining, the bottom area gets wet. Usually take the wet shavings out and let it dry out.
