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FAQs

What is a Flash Flood Door?

Flash Flood Doors limited invented and patented the Flash Flood doors in 2010, they are special uPVC (unplasticised polyvinyl chloride) doors manufactured to our patented design and specification to withstand the forces of flash flood events of short duration.

Why are Flash Flood Doors designed to protect up to 600mm height of flood waters.

We consulted numerous structural Engineers prior to finalising design of our doors, the consensus was that, majority of residential structures are not designed to withstand excessive external pressures as such, maximum of 600mm height of flood water pressure is the best median to provide the maximum protection with the lowest risk.

Application of further pressure by damming the flood waters may cause structural damage, further more increased pressure of standing water increases the speed of migration of water through the structure.

Are Flash Flood Doors outward opening only?

No

  • Our BSI KItemarked Single Flash flood doors can be manufactured to be inward or outward opening.
  • Our BSI Kitemarked Double / French Doors are manufactured to be outward opening.
Are Flash Flood Doors Suitable for Commercial properties?

Only with provision of a ramp

 All Flash Flood Doors have a minimum of 40mm threshold, which make them more suitable for residential properties.

Can the rubber gaskets/seals be replaced in case they get damaged?

Yes

Our patented rubber seals/gaskets are inserted post welding process which makes them suitable for replacement by our qualified engineers.

Can the locking parts be replaced in case they get damaged?

Yes

Our patented locking components can be replaced by our qualified engineers.

Can you manufacture Flash Flood Doors with full height glass panels.

No

  • All Flash Flood Doors are manufactured with solid sealed panels to the bottom section of the doors.
  • This gives our door the strength to withstand the possible impact from debris in flood waters.
  • Glass units sealed without drainage have a tendency to fail, this has been proven over the last 30 years.
  • Glass and Glazing Federation best practice does indicate that glass units should be placed in a free draining environment.
Are Flash Flood Doors Tested?

Yes

Flash Flood Doors are tested by BSI to Flood Protection Products  PAS 1188-1 2014 Kitemarking Standard and have been awarded full British Standards Institutions accreditation, and are audited every 6 months by British Standards.

Many manufacturers will claim that their products meet and may even claim to have tested their products to PAS 1188  2014 specifications but only those with the BSI Kitemark are independently tested and continuously assessed by BSI.

 

Are Flash Flood Doors Fabricated to a recognised quality standard?

Yes

Flash Flood doors are fabricated to ISO 9001-2015 quality standard

Have Flash Flood Doors been tested for security?

Yes

Flash Flood Doors are fully compliant with Pass 24 Security.

Have Flash Flood Doors locking system been tested for their life expectancy?

Yes

Flash Flood Doors Locking System has undergone a cycle test of fifty thousand opening, closing, locking and unlocking test and have proven to be fully compliant with industry standard 10 years life expectancy.

Can I attach a burglar alarm contact points to a Flash Flood Door?

Yes

Burglar alarm points fitted by qualified burglar alarm specialists to the top section of the door only as drilling holes at the bottom 600mm height of the door and frame section would render flood resistance warranty null and void.

Can I have a split spindle lock with a paddle handle fitted to a Flash Flood Door?

No

Flash Flood Doors are fitted with a Lever/Lever handles as standard, this ensures the locking process is carried out (cranking the door handle upwards and turning the key) to engage all the locks to achieve a watertight seal.

Replacing parts on Flash Flood Doors by unauthorised personnel would render the warranty null and void.

Do you manufacture timber Flash Flood Doors?

No

Over the past eight years we have carried out extensive research and tested numerous materials and concluded that timber in its laminated or pure form with the exception of ( Lignum Vitae ) due to its susceptibility to water and subsequent rate of expansion and contraction, is not a suitable material for a Flash Flood Door.

Do Flash Flood Doors Comply with the current energy rating standards?

Yes

The 5 Chamber Profile and A Rated Glass Unit used in fabrication of Flash Flood Doors meets and exceed the current Energy Rating requirements of Building Regulations.

What is the maintenance procedure for a Flash Flood Door
  • Every three months by the customer (lubricating the rubber seals/gaskets and locking components)

Flash Flood Door locking points and rubber gaskets should be cleaned with a soft cloth and warm water and petroleum jelly (Vaseline) applied to each locking point and rubber gaskets ( installation team will demonstrate this procedure after each installation).

  • Annually by Flash Flood Doors Technicians
What is the maintenance procedure for a Flash Flood Door
  • Every three months by the customer (lubricating the rubber seals/gaskets and locking components)

Flash Flood Door locking points and rubber gaskets should be cleaned with a soft cloth and warm water and petroleum jelly (Vaseline) applied to each locking point and rubber gaskets ( installation team will demonstrate this procedure after each installation).

  • Annually by Flash Flood Doors Technicians
Am I likely to get condensation on my glass units.

Our A rated glass units under certain atmospheric conditions may produce condensation on the external face of the glass unit.

This is due to the high thermal efficiency of our glass which does not allow the heat to escape through the unit and warm up the external face of the unit, this pane of glass stays cold and under certain conditions the moist warm air settles on this cold surface producing condensation.

Have your flood doors been tested in real flood event.

Yes

On 22nd June 2012, parts of Wigan in Greater Manchester area experienced an unprecedented rainfall which resulted in a flash flood event.

During the height of the flood, two single Flash Flood inward opening doors, one of which was installed in August 2010, experienced between 300mm and 500mm height of water lapping against them, The homeowners account who witnessed the event from inside the property, confirmed that throughout the event the doors held the water back and no water came through either of the doors.

They said “we have nothing but admiration and praise for Flash Flood Doors, water did not come through the doors, however property was flooded through the kitchen wall at the back of the property, which was not sealed and let the water through”.

On 26th August 2015 Kenmore Avenue parts of Harrow East, Kenmore Avenue area experienced a flood event of relatively short duration.

During the height of the flood, three Flash Flood doors (one single inward opening, one single outward opening and one double/ French outward opening door with side panels 3 meters in width), installed in  November 2011, experienced between 400mm and 600mm height of flood waters lapping against them.

Despite the fact that these doors had only been maintained by the homeowner their account confirmed that throughout the flood event, the doors held the water back and no flood water came through the doors.

They said “the doors did provide a substantial resistance to the flood waters and there was no evidence of water ingress around the door seals so I have no doubt that the procedure we were undertaking to maintain the operation of the doors was sufficient and this was evident at the time of the flood”.