Menu Close


Flood Vent, Insulated 1540-520

SKU: 1540-520 Categories: , , Show All


This Insulated FLOOD VENT foundation model seals out cool or warm air with a solid door and weather stripping. The 2-in. insulated core inside the vent door has an 8.34 R-value.

This model is certified for 200 sq. ft. of flood protection per vent and is 16-in. x 8-in. (standard CMU or block size) constructed of marine grade 316 stainless steel, and is 3-in. in depth. Powder coat paint options are available.

Have a Question? 919-467-7782


Ideal for use in garages or conditioned spaces where flood protection is a must, but air ventilation is not desired, this smart flood vent can save you a major headache!

  • Made in the USA.
  • Perfect for lowering flood insurance costs while also protecting your home.
  • Easy to use and install.
  • Up to 200 square feet of flood coverage.

Our FEMA-approved flood vents are a great way to ensure flood protection while also lowering your flood insurance costs. How does it work? The vent door is latched closed until water shows up. When flood water enters, it lifts the patented internal float, which in turn allows the door to rotate open. Flood water can then automatically enter and exit, ensuring that pressure is relieved from your foundation walls.

Model Number: 1540-520 In Stock

Color: Stainless (Standard)

Flood Coverage: 200 sq. ft.

Air Ventilation: 

Vent Size: 16-in. x 8-in.

Rough Opening: 16 1/4-in. x 8 1/4-in.

Spec Sheet: view

Installation Manual: view


About Insulated Function Vents:


This series is used for a garage or conditioned space where flood protection is required but air ventilation is not desired. for situations where a sealed crawlspace is being utilized in a floodplain, flood protection is still required and the Insulated FLOOD VENT series is the perfect fit for those applications.

Flood Protection

The vent door is latched closed until it comes in contact with flood water. Entering flood water lifts the patented internal floats which unlatch and allow the door to rotate open. This allows the flood water to automatically enter and exit through the frame opening, relieving the pressure from the foundation walls. Certified flood debris clearance is demonstrated with a 3” diameter opening when the flood door is activated.


The flood door contains a 2” insulated core that has an R-value of 8.34. There is also a felt weather stripping that lines the entire vent frame helping to keep the enclosure as insulated as possible.

Flood Resistant Materials

The Smart Vent product line is constructed out of Marine Grade Stainless Steel and is 100% made in the United States. T316L Stainless Steel is renowned for its ability to withstand usage in harsh marine and chemical environments, ensuring that our products will handle everything Mother Nature throws at them. Because T316L Stainless Steel is known for its strength and resistance to cracking, dents, and embrittlement it’s utilized in high profile projects meant to last decades. Alloyed with Chrome, Nickel, and Molybdenum, T316L Stainless Steel takes the strength of steel and adds protection making it the ultimate flood resistant material.


The flood door contains a 2” styrofoam core that has an R-value of 8.34. There is also a felt weather stripping that lines the entire vent frame helping to keep the enclosure as insulated as possible.

Additional information

Weight 2 lbs
Dimensions 16 x 8 x 5 in


There are no reviews yet.

Be the first to review “Flood Vent, Insulated 1540-520”

Your email address will not be published. Required fields are marked *


We offer 1-2 day turnaround on all repairs with parts in stock and emergency repairs are accepted anytime. We repair brands from all manufacturers.


Professional, Reliable and Efficient Technical Support is the foundation of our business. We offer both free and paid training and support on a variety of equipment and software.


Transit & Level offers a variety of rental equipment including GPS, Robotic Total Stations, Total Stations, Data Collectors, Lasers, Levels and other accessories on a daily, weekly, or monthly rate.

Subscribe To Our Newsletter

Get firmware updates, new products, news and more

Stay in touch

Follow us on social media