Baffles for soffit vents

Insulation · Venting Roofs · printed page 240 (PDF page 241)

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Book index entries

Baffles for Soffit Vents Soffit Vent Baffles Ventilation Venting Roofs

Text in the illustration

roof rafters
insulation
ceiling joists
interior ceiling and air/vapor barrier
baffle
soffit vent
air flow
soffit
baffles prevent soffit vents from becoming obstructed by insulation and help reduce wind washing by directing air flow away from the insulation

Generated explanation

The cutaway illustration shows a roof eave with sloping rafters above insulated ceiling joists and an interior ceiling and air/vapor barrier. A baffle installed between rafters maintains a ventilation passage above the insulation at the soffit. A large arrow shows outside air entering through the soffit vent and moving upward along the baffle toward the roof space. The annotation explains that baffles prevent insulation from obstructing soffit vents and reduce wind washing by directing airflow away from the insulation.

Components

roof rafters ceiling joists ceiling insulation interior ceiling air/vapor barrier soffit soffit vent ventilation baffle

Materials

wood framing insulation