5128 – Outside Mount for Exterior Vents Flood Barrier



The window flood barrier is a single shield that is perfect for openings of any size up to 48″ X 48″.
For larger openings, please refer to our interlocking and stackable options.

  • Easy and affordable flood protection
  • Heavy-duty, rust-free, marine-grade components
  • Guards are easy to install, remove, and store.
  • Exceeds FEMA & NFIP flood-proofing certification standards



Panel 5052 marine aluminum alloy
Frames Channel 6062 alloy T5-T6, with 10-32
stainless steel Allen head tightening screws
every 8″ on center.
Seal Sponge Neoprene within the channels and
Solid Neoprene 3-Finger Rubber on the
bottom of the panel.
Hardware #10 x 1-1/4″ FHPH with plastic expansion tube
Snap covers for safety provided for the top of
the channels and for the mounting holes.
Installation Can be installed on hollow metal, aluminum
or wood frames; and on concrete, brick or
metal surfaces.
Floor Surface Optional flat 1/4″ x 2″ bevels on 2 sides of the
aluminum plate – #319 Threshold


Our flood barriers can be purchased standard or fully customized. Here are some available options:

Sizes: Specify Width and Height

#5028: Mounted to the inside of the window frame.

#5128: Mounted to the outside of the window frame.

#5021: Stacking Function

Our mission is to provide a seamless experience for our customers. We accept orders via several different methods to facilitate your order. Because of the range of available options and the precision needed for efficient installations, Flood Barriers are typically specified in consultation with our Engineering Department.

Speak to a Customer Service Representative:
Local: +1 (718) 292-5333
Toll Free: +1 (888) 383-3330

Send an email to our Engineering Team:
[email protected]
Sending photos of your project will expedite the process, along with taking measurements.