Too much ventilation is better than too little. You can always make insulated panels to close off some vents - when(if) they are not needed. Make sure venting is backed by hardware cloth so no predators can squeeze inside the coop.
This is the coop which is inside the shed now in the day they come out and have all off the garden to thersehttps://www.backyardchickens.com/content/type/61/id/6580759/width/200/height/
Exuse the condition it was painted today but don't have a pick yet
I can't get your link to work. But yes, you are going to need venting no matter where you keep these birds. 1 square foot of vent space per bird in the ceiling or eaves.
Welcome to BYC. Glad you decided to join our flock. X2 on your link not working. The other members have given you some good advice. You should check out our article on Coop Ventilation at https://www.backyardchickens.com/a/...-go-out-there-and-cut-more-holes-in-your-coop. Please feel free to ask any questions you may have. We are here to help in any way we can. Good luck with in ventilating your coop.