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20 in. X 20 in. Fire Stopping Vent Base Flashing - VULCAN 20 in. X 20 in. FIRE STOPPING DORMER VENT BASE FLASHING, 100 Sq Inches NET FREE-VENTING. PRICE/EACH.
 
20 in. X 20 in. Fire Stopping Vent Base Flashing
VULCAN-VSB1212-1
$63.00 SALE $51.95
(Savings: $11.05)
 
 Buy 10 or more and pay $43.35 each (save $19.65) 
 
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PRODUCT: VULCAN 20" X 20" FIRE STOPPING DORMER VENT BASE FLASHING. PRICE/EACH.

DESCRIPTION:
  • Vulcan Fire Stop Honeycomb Matrix with Screen Mesh built into galvanized steel frame.
  • SIZE: 20x20" Overall square flange. Inside vent area is 13.5x13.5" (3.25" flange all around vent area).
  • 105 Sq. Inches Net Free 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.
APPLICATIONS:
  • Provide a fire stopping base flashing (sub-flashing) for most all types of roof mounted vents, including dormer vents, eyebrow vents, box vents and more.
OPTIONS Available in popular industry standard sizes and mounting configurations-
  • 16.5 x 16.5 base" (10x10 top vent opening), 54 sq inches net free-vent area 
  • 15 x 26.750" base (8 x 19" top vent opening), 109 sq inches net free-vent area
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