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FLOOD VENT WORKSHEET for Enclosures Below BFE on New Construction and Substantial Improvements LCO Section 1131.15 (b)(4) regulates enclosures below the base flood elevation (BFE) on new construction.

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How to fill out the Flood Venting Worksheet online

This guide will assist you in filling out the Flood Venting Worksheet online, ensuring compliance with regulations for enclosures below base flood elevation. By following the steps outlined, you can complete the form accurately and efficiently.

Follow the steps to complete the Flood Venting Worksheet online.

  1. Press the ‘Get Form’ button to access the Flood Venting Worksheet and open it in your preferred online editor.
  2. Review the form title and confirm you are working on the Flood Venting Worksheet for enclosures below the base flood elevation.
  3. In the proposed use of enclosed area section, clearly state the intended use of the space below the base flood elevation.
  4. Calculate the required flood vent openings by entering the area in square feet of the enclosure below BFE. Use the provided formula to determine the effective opening in inches of the vents that will be applied.
  5. Determine the number of openings needed, rounding to the next higher integer, based on your calculations.
  6. If applicable, provide a plan view drawing of the foundation outlining the location of the flood vents along the enclosure walls, ensuring to include a north arrow and a flow direction arrow.
  7. Review the Property Owner’s Certification section. Ensure that the signature of the property owner is correctly filled out, and the date is entered.
  8. Once all fields are completed, save your changes, and select the options to download, print, or share the completed Flood Venting Worksheet as required.

Complete your Flood Venting Worksheet online today to ensure your compliance with flood regulations.

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2:22 3:12 Suggested clip SMART VENT® 1540-520 Installation (Insulated Model) - YouTubeYouTubeStart of suggested clipEnd of suggested clip SMART VENT® 1540-520 Installation (Insulated Model) - YouTube

The vents cost around $200 apiece, and it costs around $150 each to install, Sonner said.

CALCULATION FOR REQUIRED FLOOD VENT OPENINGS: = Area in square feet of Enclosure below BFE Effective opening in square inches of vents to be used Number of openings needed, Rounded to the next higher integer. NOTE: The effective opening of the flood vent is the net area of the vent cover or grate.

Flood Vents protect houses and buildings during floods by preventing hydrostatic pressure buildup that can destroy walls and foundations. This mitigation technique, referred to as Wet Floodproofing, allows floodwater to freely flow through an enclosure such as a crawlspace or garage.

The vents cost around $200 apiece, and it costs around $150 each to install, Sonner said.

New Flood Vent Can Reduce Flood Insurance Cost by Up to 85%

Flood zones are primarily determined by the history of flooding in the area. Each zone is rated according to the probability of annual flooding.

The number of flood vents you need to install depends on the size and type of vent you buy. (More on that later.) Each enclosed area must have a minimum of two openings. If there are multiple enclosed areas within the foundation walls, each area must have at least two openings in its exterior walls.

The vents cost around $200 apiece, and it costs around $150 each to install, Sonner said. The number of vents you need depends on the size of your house. Sonner said five of his company's vents can cover 1,000 square feet of crawl space.

Thankfully, installing flood vents into concrete or other foundations is not difficult. They can be installed into existing openings (retrofitted) or in new home construction. Make sure the bottom of the flood vent opening is no more than 12 above the adjacent grade and that they are level.

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© Copyright 1997-2026
airSlate Legal Forms, Inc.
3720 Flowood Dr, Flowood, Mississippi 39232
Form Packages
Adoption
Bankruptcy
Contractors
Divorce
Home Sales
Employment
Identity Theft
Incorporation
Landlord Tenant
Living Trust
Name Change
Personal Planning
Small Business
Wills & Estates
Packages A-Z
Form Categories
Affidavits
Bankruptcy
Bill of Sale
Corporate - LLC
Divorce
Employment
Identity Theft
Internet Technology
Landlord Tenant
Living Wills
Name Change
Power of Attorney
Real Estate
Small Estates
Wills
All Forms
Forms A-Z
Form Library
Customer Service
Your Privacy Choices
Terms of Service
Privacy Notice
Legal Hub
Content Takedown Policy
Bug Bounty Program
About Us
Help Portal
Legal Resources
Blog
Affiliates
Contact Us
Delete My Account
Site Map
Industries
Forms in Spanish
Localized Forms
State-specific Forms
Forms Kit
Legal Guides
Real Estate Handbook
All Guides
Prepared for You
Notarize
Incorporation services
Our Customers
For Consumers
For Small Business
For Attorneys
Our Sites
US Legal Forms
USLegal
FormsPass
pdfFiller
signNow
altaFlow
DocHub
Instapage
Social Media
Call us now toll free:
+1 833 426 79 33
As seen in:
  • USA Today logo picture
  • CBC News logo picture
  • LA Times logo picture
  • The Washington Post logo picture
  • AP logo picture
  • Forbes logo picture
© Copyright 1997-2026
airSlate Legal Forms, Inc.
3720 Flowood Dr, Flowood, Mississippi 39232