Can you please tell me how I can fix the issue if I accidentally did use interior paint? I was so focused on getting low voc paint I grabbed a gallon and got the whole first coat on without realizing it was for interior! It does have mildew preventing listed on the can.Hello and welcome to BYC! Glad you joined.
An unoccupied coop can be painted with any paint rated for exterior use. Never use interior paint outside, even if it’s on the inside of the coop.