Flood Vent Calculator

Crawl Space Flood Vents Vents FFNF05TF

Flood Flaps Flood Vents Model FFNF05TFFlood Flaps ICC ESR-3560

Flood Flaps® Multi-Purpose Series of flood vents are certified to provide flood protection and air ventilation. These flood vents are perfectly designed for  an enclosure or crawl space in a flood plain that desires natural air while still providing efficient flood relief when necessary.

The patented grill remains closed and secure until forced open by flood waters, allowing water to enter or exit the enclosed area. Certified flood debris clearance is validated with a 5.75” opening when the grill is activated.

Flood Flaps are a premier manufacturer of foundation flood venting systems and takes pride in having a FEMA-Accepted and ICC-ES Certified flood vent product line.

Architects, Builders, Code Officials, Engineers, Homeowners, Insurance Agents, Realtors, and Surveyors are all turning to FLOOD FLAPS Foundation Flood Vents to protect homes from the devastation and destruction that floods can cause.

FLOOD FLAPS Flood Vents are Engineered Openings and are certified to meet all Building Codes, FEMA Regulations, and NFIP Flood Insurance Requirements. We are fully committed to ideals of responsible corporate citizenship, and making efforts to educate consumers, design professionals, and government officials on floodplain management techniques.

Download the Fact Sheet for Multi-Purpose Flood Vents

Flood Flaps® FFNF05 Crawl Space Vents – Product Information:

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  • These crawl space flood vents are perfectly designed for  an enclosure or crawl space in a flood plain that desires natural air while still providing efficient flood relief when necessary.
  • The Flood Flaps® FFNF05 crawl space vent is perfect for stud wall application.


Flood Flaps® FFNF05 Crawl Space Vent – Product Specifications:

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Model #:
Exterior Dimensions:
Rough Opening:
Enclosed Covered Area:
Installation Type:
[column col=”1/4″]FFNF05
15 5/8” W x 7 3/4” H x 5” D
16” W x 8” H
220 sq. ft.
Stud Wall

If your flood insurance is going up, Flood Flaps has the flood vent, crawl space solution to bring it down! Ask you insurance provider how installing engineered flood vents may significantly reduce your flood insurance premiums.

Flood Flaps, crawl space flood vents are certified by the International Code Council (ICC) to meet all NFIP flood insurance and FEMA requirements. They are also compliant with all building codes including the High-Velocity Hurricane Zone provisions of the 2010 Florida Building Code—Building and the 2010 Florida Building Code—Residential for structures.

Crawl space vents can help protect buildings in special flood hazard areas from damage caused by flood forces by allowing for automatic entry and exit of flood waters. If enclosure walls do not have crawl space flood vent openings, the pressure of slow moving water full of debris can cause the walls to fail and possibly cause the home or structure to collapse.

Contact Flood Flaps today at 843-881-0190 or [email protected] to find out how our Flood Flaps Model FFNF05 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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