Attic Ventilation Educational Video: 2nd Installment (Shortened AirVent “Ask the Expert” Seminar)

0:00 Introduction 1:03 Why Ventilate the Attic? 6:30 To Work Properly, Attic Ventilation Must be Balanced, Intake and Exhaust 8:09 Match the Vent Category to the Roof’s Design for Best Performance 8:50 Understanding the Importance of a Vent’s NFA or CFM 10:32 Pros and Cons of the Five Exhaust Vent Categories 20:59 Net Free Area, Thermal Effect, and the Wind 23:40 The External Wind Baffle Makes a World of Difference (The Bernoulli Effect) 25:54 An Overview of Intake Vent Categories 28:42 Traditional Attics and Vaulted Ceilings 31:10 Calculating How Much Attic Ventilation is Needed This video is extracted from the annual AirVent Seminar “Attic Ventilation: Ask the Expert™” held in-person and virtually for roofing professionals across North America every 1st quarter. The seminar is an overview of residential attic ventilation best practices and solutions. #weknowairflow #atticventilation #airvent #balancedairflow #intakevents #exhaustvents #asktheexpertseminar