I'm a big fan ( no pun intended) of Ridge Vents.. as there is no motor or moving parts , and nothing protruding over the top of your Roof.
Unfortunately if Improperly installed and not securely nailed to the Top Chord , they come loose over time, which is what I'm dealing with right now on my workshop Roof, a work in progress .. one section had literally NO nails holding it down..
but that is like after 15 years of NE winters and Snow Load. The Amateur who installed it did not make sure he hit every Top Cord on the Trusses which are 24" spaced ,he simply nailed it into the Plywood like randomly.. .. not good. So I'm re doing it with Proper Ceramic Screws, right to the Beams.
Initial Installation DOES require a Leap of faith though, because you would be literally Cutting the top of your roof to make
the Gap needed and then installing the sections of the Vent.. but once Done, there is Zero maintenance, and the Hot air just vents naturally from the Highest point which is obviously the the Ridge.
The Fee air circulation is also very good for the wood, as it is not exposed to the extreme
high heat & rapid temp changes.
In your application you are probably better off with the Vent, but its just another Idea to think on.. and it does WORK very
well.
To be honest On my House I did not have the Guts to put in a Ridge Vent. when I re shingled , and I did the whole roof
myself, with some help, all 37 squares. but I did not know that much about it then, and just replaced the 2 vents with NEW
Vents as it just seemed like the thing to do. had I to do it again, I would definitely go with Ridge Vents, esp with the new Materials available.