ICC-ES Certified FEMA Compliant Vents Florida Product Approval
How Many Flood Vents
Do You Need?
Enter the square footage of your enclosed area. Compare how many vents you need of each model, with exterior wall placement planning.
Your enclosed area
Enter information for one continuous enclosed space.
See the quantity needed for every vent model automatically.
Wall capacity, physical fit and installation locations must be checked by your installer.
How the estimate works
Calculation basis: FEMA Technical Bulletin 1, sections 8.1 and 9.3, together with the model-specific engineered coverage in ICC-ES ESR-3760 Table 1.
Size the enclosed area
Divide the enclosed area by the model’s engineered coverage, round up, and provide at least two vents. Use the full enclosed footprint. Do not subtract equipment or stored items. Separate enclosed spaces require separate calculations.
Use different exterior walls
Provide qualifying openings on at least two different exterior walls. Confirm wall capacity, physical fit and structural suitability with your installer.
Use engineered flood coverage
FEMA Technical Bulletin 1 distinguishes engineered openings from non-engineered openings. These models use their ICC-ES rated coverage, rather than the non-engineered one-square-inch-per-square-foot method. Suggested placement is not a hydraulic design.
Get Help Choosing the Right Flood Vent
Have questions about our engineered flood vents for your crawl space or foundation? Contact Flood Solutions for help with product selection, coverage ratings, installation instructions, and ICC-ES certification documents.
Tell us about your project, wall construction, and opening size. Include photos if available so our team can better understand your needs.
Call: 954.799.5518
Email: info@floodsolutions.com
