Sub-base for fire-resistant roof vent conversion
NEED HELP? CALL NOW

949-305-8059

NEED HELP? CALL NOW

949-305-8059

Fire-Resistant Sub Base Vents

Sub base vents are installed from the attic, to convert standard low-profile roof vents, turbine vents, and mushroom vents into WUI-compliant, ember-stopping vents. The vents are provided with a large nail flange for easy installation. 

The table below lists standard sizes; we can also provide custom sizes upon request.

Size
Model #
Flange
NFVA (Airflow)
Spec Sheet
12” x 12”
SB2011
Sub flashing
46 sq in
Download Spec Sheet
16” x 16”
SB2021
Sub flashing
86 sq in
Download Spec Sheet
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Roof vents converted to fire-rated vents
Standard roof vent converted to WUI-compliant vents
Fire-resistant roof vent conversion