Quote:
If you are going to use a dehumidifier, you need the room to be pretty darned tight or you are trying to dehumidify the world
Dehumidifiers are expensive to run if humid air is coming in to keep good air quality. Of course humid outdoor air isn't such a problem in the winter when the temps are below freezing, the humidity we are concerned with in the coop comes from the chickens during that time. And then there is that ammonia thing. If one was trying to build a "cheap to heat/dehumidify/ventilate" coop, they would need it tight, insulated and have a heat recovery ventilation system. Of course they aren't all that cheap to install and I don't know if they make coop size (even fairly large coops like yours) HRV units
How big is the goat barn and how many goats? Could be the goats are heating their space and yes, insulation helps keep that heat in. I don't know goats so I don't know if they have the same issues with humidity and air quality in the winter. I don't think they are as naturally well suited to cold temperatures as are down insulated chickens.