The Air Vent AirHawk B144 has a round gray plastic dome. It has a 14 inch opening and 144 sq. inches of NFA. Several of these vents are usually required to properly ventilate the attic. They should be placed evenly across the roof. high-impact...
The Air Vent AirHawk B144 has a round gray plastic dome. It has a 14 inch opening and 144 sq. inches of NFA. Several of these vents are usually required to properly ventilate the attic. They should be placed evenly across the roof. high-impact...