We have a 90 year old farm house in which the front section was originally a story and a half. When they finished it out it appears that they just screwed the sheetrock to rafters and left a small space between the ceiling and the crown of the roof. We get a pretty good heat build up when the sun shines on it. Since there don't appear to be any soffit vents or really ventilation of any kind, what would be the best way to relieve some of that heat?
I have thought about putting in a powered roof vent, but I don't know if tin roofs present any special issues.
Thanks.