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Hammerhead™ Aluminum Flood Planks

The Hammerhead™ aluminum panel flood barrier system is a durable stop log flood barrier that enables you to protect doorways and other openings against flooding.

U-Channel Posts are installed on either side of the opening to be protected. These unobtrusive posts remain in place permanently and when flooding is expected are designed to receive a series of aluminum planks, which are stacked as needed to the height required.

The Hammerhead™ stackable “stop log” flood barrier is able to withstand high water heights and will protect your building, residence, or facility against all types of flooding.

This flood gate system is also ideal for areas where high wind or debris is expected as the fixed posts and clamped planks are durable, rigid and designed to handle heavy stresses.

Hammerhead is the only aluminum system that features the patent pending SureGasket™ and AlumiSeal™ enhanced sealing system for added leak protection.

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Garrison’s Hammerhead Aluminum Flood Barrier is Proudly Made in the USA

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Meets requirements in NFIP Technical Bulletin 3

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Flood wall height customized to your needs

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Up to 12ft Wide Planks w/Center Posts for unlimited lengths

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Protect What Matters Most

Hammerhead™ flood panels provide serious protection against severe flood conditions while remaining simple to install and deploy. Whether safeguarding residential entrances or critical commercial openings, the system delivers engineered performance without operational complexity.

Application

When you need durable flood protection, Garrison’s Hammerhead™ aluminum flood plank barrier is the right flood gate choice for your residential or commercial property.

  • Doorways and Window Wells

  • Loading Docks

  • Basement Stairwells

  • Perimeter Opening Protection

  • Garages and Ramps

  • Flood gates for passageways

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Performance Advantages

  • Serious flood protection against severe floods.

  • Customizable flood barrier heights and lengths, depending on your specific flood gate needs.

  • Reusable and long lasting stop logs with durable aluminum construction.

  • Only Hammerhead features the patent pending SureGasket™ and AlumiSeal™ sealing systems for added leak protection.

  • Compactly stores and takes up minimal space. Simply stack flood barrier planks when not in use.

  • Easily deployed in advance of a flood by unskilled labor. Simply slide flood planks into posts and tighten down.

  • Durable enough to handle high winds and debris.

  • USA Made with extensive engineering and real world experience.

See Our Video About The
Hammerhead™ Aluminum Flood Plank Barrier

How Does the Hammerhead™ Flood Panel System Work?

Hammerhead™ aluminum flood barriers utilize a series of aluminum planks (“logs”) that are slotted into support posts mounted on either side of the opening to be protected.

Planks have Rubber EPDM seals on the underside and posts have Rubber EPDM in the slot, which helps create a durable seal off against water infiltration.

For added flood, wind and debris resistance, flood gate planks are tightened against the seal within the posts and bracketed down from the top, so that they stay in place in even the most extreme situations.

Rising flood waters enhance the seal due to increasing hydrostatic and hydrodynamic pressures

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*It is important to confirm that your structure can withstand the hydrostatic pressure of a flood for dry floodproofing standards. Consult with local PE (Professional Engineer).

Patent Pending SureGasket™ and AlumiSeal™ enhance your protection and ensure a good seal

A patent pending breakthrough that minimizes potential user errors related to pre-storm plank deployment: unique to Hammerhead® flood-logs.

When spec’ing out a flood barrier system, be sure to include the SureGasket™ and AlumiSeal™ for the ultimate in proven leak protection.

Hammerhead’s Patent Pending SureGasket™ Seal

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Garrison’s Hammerhead® flood barriers incorporate SureGasket™, a patent pending post and plank sealing gasket that enhances the connection between the post, plank and the ground below. All flood protection systems can have slight leakage, often at the intersection between the post, ground and the plank. Garrison’s R&D department worked to create a unique arced sealing gasket that slots into the geometry of the post and also interfaces with the arc of the bottom plank seal, using a mirrored arc design. This enhances the seal where its needed most, providing the highest level of protection.

The Hammerhead AlumiSeal™ Sill Extrusion

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For jobs where the ultimate in flood proofing is required, Garrison’s unique AlumiSeal™ aluminum plate extrusion helps provide an enhanced seal between the Hammerhead® bottom plank, the sill plate and the ground below.

 

The arced aluminum extrusion interfaces and aligns with the bottom plank seal and a closed bottom version of the SureGasket™ to create the industry’s most advanced patent pending leak protection system. 

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Powder Coating Available!

For enhanced aesthetics, add powder coating to your Hammerhead Flood barrier System. Available in 4 standard colors, powder coating your Post Mounts helps them blend in with your surrounding structure.

HammerHead™ Resources and Guide

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Feel free to contact us with any questions or for advice on the best flood barriers, flood gates and flood control solutions for your specific need.

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