Vulcan 5-1/2x22 in Fire Resistant Eave Galvanized Vent for trusses and rafters - VE5522

Vulcan Vent Item VUL5122238

Vulcan 5-1/2x22 in Fire Resistant Eave Galvanized Vent for trusses and rafters - VE5522

Vulcan Vent Item VUL5122238
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About this product

Manufacturer Item: VE5522, Net free ventilation area: 75sqin

View VulcanVent VE3522 Manufacturer Documentation (PDF)

FROM THE MANUFACTURER:

The Vulcan Vent is an exterior vent that will prohibit both dangerous embers and fire from entering a structure during a wildfire. Vulcan Soffit and Eave Vents are the first to be accepted in the CBC Ch7A Compliance Policy by the Office of the California State Fire Marshal. Vulcan Vent ® systems resist the intrusion of flame and dangerous flying embers as called for in Chapter 7A of the California Building Code.

Most structures must have exterior ventilation and studies have shown that embers from a fire that is miles away can fly through the air causing an ember attack which may hit a home or other structure and enter through the exterior ventilation system igniting a new fire from the inside. The Vulcan Vent, through a patented, fully tested design, has a dual mechanism which will 1) block dangerous flying embers  from entering the inside of a structure which may be many miles from the actual flames and 2) self-close when it senses approaching heat from a wildfire thereby prohibiting flame penetration. The Vulcan Vent meets the prescriptive code of the Wildland Urban Interface requirements for vents within California’s building codes.   Newly written California fire code legislation includes a section stating, in part, “vents shall resist the intrusion of flame and embers”.  
 
An extraordinary feature of the Vulcan Vent system is its simplicity of design and ease of application for new, remodel and retrofit construction.  All vents within the Vulcan Vent system can be designed in any shape or size, including matching the specifications of all existing 1/4 inch (or smaller) open screen eave, foundation, gable, dormer and soffit vents.

The Vulcan Vent, in many cases, has more air flow (NFVA, Net Free Ventilation Area) than other exterior vents claiming to stop ember and flames.  In any property, there is a need for a specific amount of ventilation to prohibit mold, mildew and/or rotting timbers.  The air flow capacity of Vulcan Vents is excellent. Even with their fire and ember blocking technology, Vulcan Vents, in many cases, have air flow equal to that of standard vents of the same size.   Thus, property owners with new construction, remodel or retrofit  projects would need to purchase and install twice as many of any other “fire vent” as would be needed of the Vulcan Vent. The use of a Vulcan Vent over another “fire vent” will cut down construction costs (material and labor) as well as make structures more aesthetically pleasing. 

Frequently asked questions

Can I paint a Vulcan Vent?

Yes, according to the manufacturer, you can paint a Vulcan Vent, though make sure the paint does not clog the rear mesh, the honeycomb matrix, or the perforated vent face.

What makes a Vulcan Vent fire-resistant?

Vulcan Vents have a honeycomb matrix with a fire-resistant coating that expands to close the vent when exposed to flames, creating a barrier.

Which side of a Vulcan Vent faces the attic or crawl space?

The side with the finer 16-16 stainless steel mesh faces the attic or crawl space.

What temperature does the Vulcan Vent close?

According the manufacturer, the vent closes when the matrix reaches a sustained temperature of about 300°C (572°F).

Does a Vulcan Vent claim to protect my home from any and all wildfires?

No. According to manufacturer, Vulcan Vents are a "first line of defense" against embers and exterior flames.

Product specifications

UPC Barcode
858659007105
Weight
0.89 lbs.
Dimensions
5.5in x 22in
Manufacturer Product Code
VE5522
Net free ventilation area (sqin)
75
Return Policy
45 days from date of delivery. Review our Terms for more info

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