Don't mix Soffit and Gable Vents?

Specific Inspection Topics Roofing Inspections
1

Hi all,

I’m watching the How to Perform an Attic Inspection According to the InterNACHI Standards of Practice video and the inspector mentions that “We don’t want to mix gables and soffits” (timestamp 3:27).

I understand that airflow will take the path of least resistance, but why would a ridge vent be OK and not a gable vent, when used with soffits?

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2

Gable vents will work if thy are large enough to give adequate trough-flow of air, but ridge and soffit vents are much more efficient.

3

Ridge vents usually run the length of the roof. Soffits vents are located directly under the ridge vents. This makes airflow more natural than air trying to find a gable vent some distance away.

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4

That makes a ton of sense! Thanks!

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5

You are welcome.