Paths to good venting
For intake air, soffit vents are best. Air can passively exit through ridge vents or hood vents. Turbine vents harness the wind to suck air out of the attic. Electric-powered vents are the ultimate air movers but aren’t necessary in most situations. Gable vents can help by allowing air in or out, but they don’t usually help the air flow evenly throughout the attic.