I live in Nashville Tennessee area, a lot with lots of trees all around my home.
My home is gable roof, 7/12 and 9/12 pitches. The main section (7/12) is 72’ long and rafters 27’ each side…
I have continuous vented vinyl soffit 2’ wide. There are baffles in the soffits for insulation.
I have ridge venting on all ridges, ± 100 LF. I also have 3 turbines on the rear (north side) with tops below ridge line.
Issue: Is my attic venting: poorly, okay, or very well?
Are the turbines pulling air through the ridge vents thus not removing hot air effectively?
Or due to the trees, does the ridge vents not have enough wind or low pressure to draw the air from the attic?
A roofing contractor stated that I should remove the turbines.
I believe that the turbines are moving more air than the ridge vents and both are drawing from the soffits. They were turning today with a little wind blowing 5-8 mph and 65 degrees. Sun and partly cloudy. Temp on sun side of attic 72, at shaded side turbine 69.
I don’t feel the turbines are ‘short circuiting’ the ridge vent flow (or pulling air through the ridge venting and not the soffit venting.)
I am reluctant to remove or close the turbines. I am very familiar with fluid flows and thermal dynamics from working in the chemical plant industry.
Your a opinion will be greatly appreciated.
Mt. Juliet, TN