20"H x 20"W (105 Sq. In. Venting Area) Vulcan Fire Stopping Base Flashing, Galvanized Steel, for use with any standard dormer vent

by Gunter Manufacturing
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Item No.: VSB1212

Quick Overview

The Vulcan Sub Base is a remarkable product that can be used in conjunction with any other manufacturers dormer or roof vent and turn it into an ember and fire safe vent. Simply install Sub Base over hole in sheeting, paper around it and install vent over the top. This flashing can also be reversed if a flush surface is required.
  • Vulcan Fire Stop Honeycomb Matrix with Screen Mesh built into galvanized steel frame
  • Net Free Vent Area: 105 Sq.in.
  • 20" x 20" Overall square flange. Inside vent area is 13 1/2" x 13 1/2" (3 1/4" flange all around vent area)
  • Vulcan Vent matrix is 1/4" hexagon expanded aluminum, coated with an intumescent coating from Firefree Coatings Inc. The coating swells up when exposed to high temperatures and closes off the cells, effectively blocking off fire & ember intrusion
  • The Vulcan Vent™was designed to meet the new California Building code SFM 12-7A of the California Wildland-Urban Interface fire code program
  • Have a question? Give us a call at 1-888-573-3768

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