I'm planning a new roof next spring on my 1951-built house. Going down to the decking. For the first 40 years, the attic was ventilated by vents at each end of the attic (no soffits) and worked fine, no moisture problems. About 20 years ago, I added a wind turbine to help dissipate summer heat. Since I'm going down to the decking, I'm thinking about replacing the wind turbine with a ridge vent all across the top. While I think a ridge vent would give a lot cleaner look than the wind turbine sticking up, maybe I should stay with a capped ridge and the turbine. If it works, don't fix it!