What is the difference between non-engineered and engineered flood vent openings?

By: tajim
October 30, 2012
FAQs

What is the difference between non-engineered and engineered flood vent openings?
Non-Engineered Flood Vent Openings:

Is simply measured by calculating the opening in the vent itself. It’s the amount of air – water flow or net open area. You will require more non-engineered openings than if the openings were engineered.

Engineered Flood Vent Openings:

Is designed and certified by a registered engineer or architect as meeting certain performance characteristics describes in FEMA Technical Bulletin 1/Aug 08. An Engineered flood vent will need fewer vents to satisfy the requirements of the NFIP and FEMA.
If using an engineered vent then additional data must be provided. The “engineered openings must be certified by a design professional as having been designed to provide automatic equalization of hydrostatic flood forces by allowing for the entry and exit of flood waters.”
Design requirements and specifications for certification statements are outlined in FEMA Technical Bulletin 1-08.

Flood Flaps manufactures and sells Engineered Openings, Foundation Vents.
Contact Flood Flaps today at 843-881-0190 or [email protected] to find out how our flood vents can help reduce your flood insurance, and protect your home or business property from flood damage.