Air Vent AirHawk B144 Plastic Replacement Dome

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Air Vent AirHawk B144 Plastic Replacement Dome Gray


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Manufacturer Part Number: B144GR

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Product Information


Description

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.

A guideline to keep in mind with the Air Vent Air Hawk is that homes require 1 square foot of net free area (the total unobstructed area through which air can enter or exhaust a non-powered vent) for every 150 square feet of attic floor space. If balanced between intake and exhaust vents, the requirement is 1 square foot of net free area for every 300 square feet of attic floor space.

Features

  • Multiple roof vents are usually needed to provide the required net free area
  • Must be spaced equally over the roof to provide sufficient airflow along the entire roof sheathing

Specifications

  • high-impact plastic dome
  • 24" x 24" flashing
  • NFA (square inches): 144/pc.
  • 15" diameter roof opening dimension
  • gray

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