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

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.

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About FloodFlaps

Our FEMA compliant flood vent products are designed to provide efficient relief from hydrostatic water pressure resulting from rising flood waters.

All Flood Flaps flood vents are ICC-ES certified to provide 220 sq.ft of enclosed area relief. Each flood vent is constructed of UV enhanced, durable, engineered ABS plastic that has undergone 2,000 hours of scientific lab testing, ensuring it’s durability and sustainability, along with a providing a great, handsome, clean, finished look on the exterior at an affordable price.

Unmatched Value and Superior

Contact FloodFlaps

P.O. Box 1003
Isle of Palms, SC 29451

(843) 881-0190

Email: [email protected]

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