🌬️🏠 How Many Air Exchanges Should Your Attic Have? Aim for 6+ per Hour
The Wise Attic Insulation Ventilation Podcast

🌬️🏠 How Many Air Exchanges Should Your Attic Have? Aim for 6+ per Hour

2025-11-17
🌬️🏠 How Many Air Exchanges Should Your Attic Have? Aim for 6+ per Hour Aim for six or more complete air exchanges per hour in your attic. Different vent types deliver different rates: ridge vents ~2 exchanges/hour, whirlybirds 3–4/hour, and powered fans (e.g., a 30 W fan) can reach about 6/hour; sometimes multiple fans are needed. Reaching 6+ exchanges (roughly one full air replacement every six minutes) improves heat removal and helps reduce humidity and moisture problems common in humid climates like Houston. Check out the full podcast here - https://w...
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