About the Vulcan Vent

The Vent that protects.

At Gunter manufacturing we have over 50 years combined sheet metal manufacturing experience. Special orders are not a problem. Our vent frames are industry standard frames so there is little or no learning curve for installers & contractors. Our goal is to provide people with the vents they need to secure their homes with additional safety against wildfires and give them piece of mind from knowing that their home is protected by a product that works!

The patented Vulcan Vent is proven to

STOP Dangerous Ember intrusion into the attic and other spaces of the home.(With or without the presence of fire.)

STOP Fire intrusion into the attic and other spaces of the home.

California WUI building code calls for a vent that will stop floating embers from entering the attic through the eave or soffit vents and at the same time prevent fire from passing through.

Finally there is a self closing vent that does both without sacrificing air flow!

The core of our fire and ember safe vents are manufactured out of high grade aluminum honeycomb and coated with an intumescent coating made by FireFree Coatings. The intumescent coating is designed to quickly swell up and close off when exposed to high heat. The expanded material acts as an insulator to heat, fire and embers

As shown above, the hexagonal coated mesh closes off at higher temperatures, sealing your home’s attic and roof from external fire.

Quick response time from the vent that protects.

At right: Graph data captured from actual test. Shows the quick response time of the intumescent coating in stopping fire ‘cold’ from reaching the attic space. The blue line shows the results of a standard vent and the bottom three lines show the results of three different Vulcan Vents.
After the cells close off they are extremely well insulated and fire or embers cannot penetrate.

Even before the cells close off, the vent is designed to protect against flying embers. In many cases embers will attack a home before fire ever comes near, so this feature is very important.

Can I paint the Vulcan Vents?


You can paint the Vulcan Vents. The intumescent coating can be painted over and still function perfectly. In many applications it is used as a base coat for fire protection of walls. We only caution not to spray so much paint as to clog the mesh on the back side of the vent. If using a sprayer, spray at a 45 deg angle to the face of the vent in short bursts while moving the sprayer over the vent.

Can I cut the Vulcan Continuous Soffit Vent?


The continuous soffit vent can be cut anywhere along its length, the same as a standard soffit vent. This includes miters around bay window or around corners on a fully soffited home.

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

The finer mesh side ALWAYS faces to the attic side or crawl space side.

At what temperature does the vent close?

The vent closes when it reaches about 300 degrees C. Once it reaches the critical temperature the closure is very fast.

Where is the Vulcan Vent Made?

The Vulcan Vent is assembled in the United States, with some parts coming from China.