About Master Flow™ High‑Capacity Dome Vent
Extra-large Vent Moves Large Quantities of Exhaust. A great solution for attics requiring large quantities of exhaust ventilation, especially those with limited ridge area, it’s made from galvanized steel and includes a durable insect screen. This high-capacity static dome vent delivers an extra-large 144 sq. in. (92,903 mm2) of Net Free Area to help exhaust heat and moisture from the attic. Available in popular colors to complement your roof.
This product can be used to comply with certain FORTIFIED Roof™ requirements. Visit gaf.com/fortified and current FORTIFIED Home™ Standard available at fortifiedhome.org for details. Applicable in the U.S. only.
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Features & Benefits
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HIGH CAPACITY
144 sq. in. (92,903 mm2) of Net Free Area helps exhaust hot and moist air from the attic -
EASY TO INSTALL
Installs like a typical roof vent and without the need for electrical hook-up -
PROTECTION
Helps protect against wind-driven rain and passes the UL 2218 Class 4 impact-resistance test¹
¹Testing performed under controlled laboratory conditions. Hail damage is not covered under GAF limited warranties
Earn GAF Rewards when you buy GAF Master Flow® ventilation products
Master Flow™ ventilation products are eligible for GAF Rewards points. Visit GAF Rewards for a complete list of qualifying products.
Eligible accessory product in the Attic Ventilation Category of GAF Residential Enhanced and WindProven™ Limited Warranties*
*15-year WindProven™ Limited Wind Warranty covers GAF Shingles with LayerLock® Technology only and requires the use of GAF Starter Strips, Roof Deck Protection, Ridge Cap Shingles, and Leak Barrier or Attic Ventilation. See GAF Roofing System Limited Warranty for complete coverage and restrictions. Visit gaf.com/LRS for qualifying GAF products. For installations not eligible for the WindProven Limited Wind Warranty, see GAF Shingleand Accessory Limited Warranty, Master Flow™Ventilation Products Limited Warranty,or Master Flow™ Powered Ventilation Products Limited Warranty (depending on product) for complete coverage and restrictions.
Product Documentation
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Installation High Capacity Dome Vent (HCD144)
Installation Instructions and Guides
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