[RKDinOKC]

When i redid the shingles and had to scrape the layers down, took the turbines off, put in a ridge line vent, and added more vents to the eaves. It is a lot cooler.
You leave about a 4 inch gap at the top of the ridge. Then put a little roof over that with a gap under it. The little roof covers enough that wind blown rain is kept out and not enough gap that the animals get in either. But is more venting that the two turbans did, and the convection works really well.

The main ridge line of my house is North to South. Garage and a bedroom stick out to the West on each end with their own Gables a little lower than the main ridge line. Makes like a U. The bedroom was on the North West end. Before I did the ridge line vent and an extra eave vents the temps in that bedroom were 5 degrees warmer than the rest of the house. Brother with MS was staying in that room and ended up putting a window A/C to keep it from getting too warm for him and freeze the rest of the house. If it got above 72°F he would start sweating and become paralyzed from the MS. After putting the ridge vent and extra eave vent in that room stays the same temp as the rest of the house and was able to get rid of the window A/C.

The only problem I had with the extra eave vent was too close to the stockade fence and the squirrels got in before I figured out the wire on the new eave vent had to be squirrel proof!

The garage walls are not insulated, the door is with weather stripping. The temp in the garage is cooler than outside in the summer and warmer in the winter...until you open the overhead door. Then the ridge line vent sucks outside air through the heater closet and gets it to match outside if the door is left open too long. Did go from two 1000watt heaters in the garage to just one to keep it above 50°F on the coldest winter nights after going to the ridge line vent.