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Are there any disadvantages of vented soffit panels (made by siding manufacturers) as intake vents?

April 26, 2017disadvantages intake manufacturers Panels siding vented vents

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Are there any disadvantages of vented soffit panels (made by siding manufacturers) as intake vents?

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A. The primary disadvantage of the vented soffit panels is that they do not provide much net free area. The average net free area of a perforated panel is around 6 square inches per square foot. That would mean that a 1½ foot overhang with fully perforated panels the full run (not every third panel or one every 6 feet, but completely perforated) would be required to balance an ridge vent that provides 18 square inches of net free area per linear foot.