Dormer Vents

The Vent That Protects

Important for proper cooling of the attic dormer vents are a common entry point for embers.

Our half round dormer vents are attractive, long lasting and fire resistant. Use vertical dormer and gable vents in combination with horizontal vents for proper ventilation. Vertically oriented vents may be more prone to ember attacks, so Vulcan Vents are designed with embers and flames in mind.

Vulcan Dormer Vent
Shown: Vulcan Dormer Vent

VDHR and VDLR (Vulcan Dormer & Low Profile)

SKUSIZE IN INCHESTYPENFVA IN SQUARE INCHES
VDHR122412 x 24Dormer, Half Round90
VDHR9189 x 18Dormer, Half Round51
VDLR4194 x 19Dormer, LP56

Retrofit Half Round and Low Profile Dormers

SKUSIZE IN INCHESTYPENFVA IN SQUARE INCHES
VDHR1224R12 x 24Dormer, Half Round Retrofit90
VDHR918R9 x 18Dormer, Half Round Retrofit51

Retrofit Half Round and Low Profile Dormers

SKUSIZE IN INCHESTYPENFVA IN SQUARE INCHES
VM142413.75 x 24Matrix only: Dormer, Round RetrofitDepends*
VDHR918R9 x 18Dormer, Half Round RetrofitNo restriction
VM242424 x 24Dormer, Round RetrofitDepends*
VDHR1224R12 x 24Dormer, Half Round RetrofitDepends*
VM482448 X 24Matrix only: Dormer, Round RetrofitDepends*

We have Low Profile Dormers and Half-Round Dormers available.

Half round prefix: VDRLow profile prefix VDLR
“NFVA”: Net free ventilation area. This indicates the amount of open ventilation, measured in square inches.
Shown: Vulcan Low Profile Dormer Vent, or 'eyebrow' vent. 1 of 2
Shown: Vulcan Low Profile Dormer Vent, or 'eyebrow' vent. 2 of 2