About Dual Function Vents
Application
These vents are used for a home with a crawlspace or any enclosed area that desires natural air ventilation and flood protection.
Flood Protection
The vent door is latched closed until it comes in contact with flood water. Entering flood water lifts the patented internal floats which unlatch and allow the door to rotate open. This allows the flood water to automatically enter and exit through the frame opening, relieving the pressure from the foundation walls. Certified flood debris clearance is demonstrated with a 3” diameter opening when the flood door is activated.
- Flood Coverage 200 sq. ft.
- Air Ventilation 51 sq. in.
- Vent Size 16-in. x 8-in.
- Rough Opening 16 1/4-in. x 8 1/4-in.
