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Home Inspection Flashcard #129

Attic, Ventilation

What's Your Call?

What problem does this illustration show?

a. When the prevailing winds blow perpendicular to the gable vents, air is pulled from the attic. The lowered attic air pressure pulls conditioned air from the living space, increasing HVAC costs.

b. When the prevailing winds blow perpendicular to the gable vents, areas of high pressure are created within the attic that cause reactions similar to inflation.

c. When the prevailing winds blow perpendicular to the gable vents, they do a poor job of removing hot, moist air from the attic space.

d. When the prevailing winds blow perpendicular to the gable vents, they create rotating vortices near each end of the attic space that do nothing to ventilate the attic.

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