I've got a properly installed ridge vent in another coop of mine, and truth be told, I don't notice any difference from that coop to another of the same size without the ridge vent. I was really disappointed in that. But, I guess every little bit DOES help as far as ventilation. Thanks for the tip - it's a good idea, and yeppers, I've roofed many a roof before so it would be an easy job.