humidity in chicken coop ?

[northmaine]

my coop is 10x10 ft x6 ft h insulated. my question is,how can i reduce the amount of humidity inside coop when the outside humidity is 90% thank you.

 

[sourland]

Short of installing a dehumidifier (unreasonable) I doubt that you can counter the ambient humidity.

 

[drumstick diva]

Maybe the heat(insulation) and not enough ventilation- chickens are wearing down coats. They tolerate cold much better than heat.