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Construction Metals

Model BH24

Internet #202216814

Store SKU #223974

12 in. x 24 in. Galvanized Steel Half-Round Dormer Vent

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Product Overview

The beauty and longevity of copper on a roof top, this roof dormer vent has a crimpless face and eliminates the need for sealant or solder. One piece copper construction and lightweight, with louver blades to deflect rain or snow. 1/4 in. Copper Wire Mesh over the 12 in. x 9 in. rough opening prevents birds and large insects from entering attic space. Adequate attic ventilation prolongs the life of the roof and overall structure & lowers utility bills yearlong. Meets FHA requirements. .016 Oz. copper resists rust and corrosion while adding a decorative touch.

  • Net free vent area: 100 sq. in.
  • Ventilates 208 sq. ft.
  • Designed for use with composition shingle, shake, or flat tile roof
  • Durable galvanized-steel construction
  • Paintable for color matching
  • Installs to composition shingle, shake and flat tile
  • Includes wire mesh to help prevent pest infestation
  • Sharp metal edges, use safety gloves

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Customer Questions & Answers

3 Questions2 Answers

Customer Questions & Answers

12 in. x 24 in. Galvanized Steel Half-Round Dormer Vent
12 in. x 24 in. Galvanized Steel Half-Round Dormer Vent

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2 answers

Hi, I have a house with a length of 120 ft roof how many of this vent I need thank you

This question is from 12 in. x 24 in. Galvanized Steel Half-Round Dormer Vent
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Clovis
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August 20, 2015
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Answers (2)

Asked by
Southern CA.
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Home Improvement Profile: Professional
April 30, 2016
Answer: 
In So. California you need 1 square ft. of attic vent for every 150 Sq. ft. of your house.
Example: 1800 sq. ft. home divided by 150 sq. ft. equals 12 vents. Vent size 12"x12"minimum
Cities and communities have different requirements due to climate and fire restrictions so check the building code requirements in your area. in most cases it can be googled.
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August 21, 2015
Answer: 
The number you would need depends on the total square footage you are trying to vent.
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My home is a single story 1156 sqft how many of these do i need?

This question is from 12 in. x 24 in. Galvanized Steel Half-Round Dormer Vent
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January 27, 2016
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Will it help turn the WhilyBird (turbine) with this dormer vent?

This question is from 12 in. x 24 in. Galvanized Steel Half-Round Dormer Vent
Asked by
Van Nuys
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August 29, 2015
My WhilyBird (turbine) is not turning on my guest house. I want to install this dormer vent on the roof but will it help to turn the WhilyBird?
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