Frequently Asked Questions

FPS is the newest addition to the Spencer Butcher Group (SBG). A company with over 80 years’ experience delivering custom solutions tailored to the industrial, commercial, and governmental sectors. SBG has been in the flood protection business for three years.

NO.

Since the system is so easy to deploy, FPS provides initial deployment training to your inhouse team or to a third party of your choice. This service is provided for free with the purchase of the system. Additional refresher courses are available on a pay for service basis.

All FPS products and solutions are for sale. Financing options may be eligible for some FPS projects.

There are many factors that go into calculating costs: system height, linear feet, number of corners, location shipped to, etc. Contact us to get a quote without obligation.

FloodDefender consist of a galvanized steel structure with an impervious reinforced fabric deployed on top. The rapid deployment FloodDefender systems are designed, engineered and manufactured in the USA to meet or exceed ANSI 2510 standards.

YES.

The 48 inch FloodDefender system is FM Approved.

This system is fully engineered, with PE stamps. Our FloodDefender system design is based on the following Standards:

  • American National Standard for Flood Mitigation Equipment (ANSI/FM 2510-2020)
  • US Army Corps of Engineers - Maximum Impact Forces of Woody Debris on Floodplain
  • Structures (February 2018)
  • International Building Code (IBC)
  • American Institute of Steel Construction (AISC)
  • American Iron and Steel Institute, North American Standard for Cold-Formed Steel Structural Framing (AISI)
  • Steel Stud Manufacturers Association (SSMA)

NOTE: The engineering analyses indicate maximum steel fiber stresses and deflections to be acceptable for the application with sufficient factors of safety under all loading conditions required by applicable codes and guidelines. Engineering Analyses have been third party peer reviewed for methodology and accuracy.

There are two system heights available, 48 inch and 72 inch.

Note: The 48 and 72 inch A-Frames can be used interchangeably. In fact they are designed with this adaptability in mind to handle uneven terrain. This feature is unique to FPS in the flood market

Due to its modular engineering and design, all of FloodDefender’s proprietary systems can be designed and built to any perimeter length or configuration including inside corners, outside corners, sweeping curves and virtually unlimited straight runs and accommodates dips in the landscape.

The FloodDefender system is installed by hand and without tools. It’s designed for use by the same volunteers that deploy a sandbag system. No individual pieces exceed 35 lbs. 150 ft of 48 in FloodDefender can be installed in less than an hour with four people.

Yes.

All our systems are designed to handle fast moving waters that include suspended debris.

  • The reality is that no deployable solution available on the market today is designed to withstand hurricane force winds. Even permanent structural solutions such as flood walls can fail due to the variety of events that can occur during a storm.
  • The effects of wind on the FloodDefender system are dramatically reduced or eliminated completely once the weight of rising water is against the A-Frame structure.
  • Our deployable barriers can be used with certain additional deployment techniques/physical solutions to aid in these storm situations - and we will work with the customer to develop these for the specific site.

  • It is easy for anyone to setup without tools.
  • Quick to install, Quick to break down - Less labor intensive to install than other methods. 1/200th the man hours of sandbags.
  • No water or fill material to procure, or spend hours upon hours filling. No hazardous material disposal after the flood.
  • Stores incredibly compactly to allow storage near where it will be deployed. Racks are about 3,500 lbs and can be stacked three high.
  • Customizable for each site.

  • Our rapid deployment FloodDefender system is fully engineered and takes into account all lateral forces in question and also considers many other potential forces (e.g., sliding, overturning, frame stresses/fabric stresses) that will act on the equipment during a mother nature event.

  • The design of the system is an “A-Frame”, which utilizes the weight of the water or hydrostatic loading that creates a vertical downward force on the frames and the liner, keeping them in place under load. The water's vertical loading creates system stability and facilitates sealing of the liner, both to the ground and the frame support structure. Once the system is under load, parallel (flow) forces to the barrier have little to no effect as the barrier as a unit is incredibly stable due to the loading created by the hydrostatic load - even a minimal amount of water such as three to four inches creates incredible loading.

Note: The same design principles, whereby hydrostatic load is effectively used to pin down equipment, has been utilized for over forty years in similar businesses such as the cofferdam business, where cofferdam equipment is often placed in fast moving large rivers.

  • The trailing edge of the sealing apron must be properly ballasted to keep it stable and in place until water reaches it and seals it to the ground. The training course that we provide to all customers will cover deployment in detail and will specifically focus on means and methods that should be used to properly create the best seal for each site at the edge of the fabric apron.
  • Overtopping is always a risk when placing any flood barrier. To mitigate this risk, we review a substantial amount of data as it relates to specific locations. Data we review includes FEMA flood maps and scientific flood risk analysis reports that show elevations that correspond to 1% year and 2% year flood events. Prior event occurrences at the site are reviewed. We perform an extensive onsite analysis, providing information that aids with our interpretation of 1% and 2% year event data and how they would potentially affect the facility.

We do not recommend installing FloodDefender on sand. Deployable systems fail on sand because of the lack of cohesive properties of sand. The sand will not support any compressive loads while moving water is precent.

Yes.

There needs to be appropriate space to accommodate system operation.

Yes.

Racks come with covers and can easily be stored outside right where the product is needed.

The fabric is up to 37ft wide and mates with the adjacent fabric section using an easy-to-use joining methodology that forms a watertight seal. Methodologies such as this have been used for over 40 years with great success.

The galvanized steel elements of the FloodDefender system should provide decades of protection. The fabric is rated for 7 years of constant UV exposure. If it is properly stored post-flood, it should last much longer than that.

No.

It can be power washed, air dried and stored back in the rack.

Yes.

Maintenance pumping is required for any temporary barrier system. The amount of seepage will be determined by the surface/subsurface that the fabric rests on. It is also important to consider the rain coming down behind the FloodDefender barrier system, therefore dewatering is always an important consideration.

All Equipment provided shall be free of defects in design, materials, or workmanship and will conform strictly and in all respects to the Buyer's specifications as agreed upon in the contract document.

The process of joining the two fabrics takes less than five minutes and is easily done use joining methodology that forms a watertight, leak-free seal. This joining process will be detailed in customer training sessions.

We don't specify brands or models of pumps. There are key considerations to keep in mind when considering de-watering solutions. We will address this topic during our implementation planning discussions and training session.

  • Maintenance pumps should have float switches and are preferably hard wired/connected to constant fuel/energy source. Consider natural gas as a power source if available on site.
  • Number of pumps and pump sizing will vary based on site and anticipated flood conditions. During the site evaluation we will identify approximate needs based on all available data. We will recommend a safety margin (extra pump locations) in case the pumps fail during flood conditions. (the cost/benefit is high to have extra capacity)
  • The minimum pump size that we recommend is an industrial trash pump with a two-inch outlet.
  • Pump placement within the barrier is important. Pumps should be placed at water outlet discharge areas and existing sump or grate areas. During the site evaluation we will identify effective pump placement areas.
  • Pump discharge hoses must be directed over the FloodDefence barrier and supported in a way that ensures that there will be no contact to the FloodDefender barrier. Hose support devices are available to properly direct the hoses over the FloodDefender barrier.
  • Pump hosing must be properly secured to eliminate the effects of torsional forces that could spin the pump during startup and operation.
  • Pump discharge must be directed away from the edge of the fabric liner to reduce or eliminate any turbulence that could be created at the fabrics lower edge. Left unchecked, this type of high pressure pump generated turbulence on the fabrics lower edge may contribute to breaking the fabric seal.
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