| 1To install the Aura Ventilator on steeper pitches up to a 90 degree angle, a modification is available.
2With equal soffit, gable or other inlet vents, 'Pop Vents' (inlet vents) are available.
3This chart is based upon the 1/300 rule. One square foot of ventilation on top for every 600 square feet of floor. 50% exhaust, 50% intake.
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