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Counting the cost of flood…

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News released today states the flood toll worldwide is set to triple by 2030. In the UK alone, “76,000 people a year could be at risk of being affected by flooding unless flood defences are improved resulting in a yearly bill of more than £2bn.” - BBC News

Frank Kelly, Founder & CEO of UKFB explains how house builders & developers can keep planning authorities happy by adopting simple, cost effective mitigation measures to both new builds or as ‘retrofits’ to existing properties to help reduce the number of those affected

The reality

After experiencing relatively low levels of flooding this winter, it would be easy to dismiss the devastation of last year’s floods as a one off event but the reality is very different.  Currently, around 5.3 million homes in the UK are at risk of flooding and the average annual cost to the economy is over £1.4 billion.  Yet awareness of flood risk among both homeowners and developers is poor and there is little, if any, understanding of the range of defence measures available on the market to help protect properties.

As a nation, we’re currently counting the cost of introducing retrospective flood protection to homes, businesses and communities.  As building land becomes scarcer and the demand for new homes grows, developers are turning to flood plains as a viable alternative. As a consequence, planning authorities are increasingly demanding a ‘flood risk assessment’ as a mandatory requirement of new planning applications.

Regulations

Fire protection has quite rightly been a fundamental part of building regulations for many years. In more recent years environmental sustainability and energy efficiency have been added to the list for priority consideration. As an industry we are pushing for flood protection to be given the same status as these other fundamental regulatory requirements.

Evidence shows that by incorporating defence solutions as early as possible in the process, developers can be assured of both long-term protection at a fraction of the cost of post-build installation and, of course, that all-important planning consent.

Reactive products

Products that offer ‘reactive’ door, brick and sewage protection are a cost effective, easy to install choice.  Designed for individual properties, barriers and walls provide effective door defence, while airbrick covers and toilet bungs are both easily deployable in the event of a flood.

Defender walls can be deployed to provide protection for longer spans including garage doors, driveways and patio/french doors.  Utilising a simple post and socket installation system, a wall is a cost effective and popular choice in developments where bi-folding and curtains walls are a dominant design feature.

Passive products, active defence

Effective as these reactive products are, by far the most appealing solutions are ‘passive’ defence products that activate automatically in the event of a flood, such as self-activating flood barriers. These passive solutions have been successfully introduced to riverside residential developments in both Cornwall and London.

Although flood doors may look like standard uPVC door at first glance, they are highly engineered flood products featuring specially designed seals and a vertical/horizontal locking system developed in conjunction with specialist lock manufacturers.  Some also come with a top escape hatch for easier evacuation. 

Bricks and backflow

But doorways are only one route of water ingress into a property.  In excess of 5000 litres of flood water an hour can enter a property through a standard airbrick alone.  The simple replacement of a standard brick with an anti-flood airbrick, in which an internal flap automatically closes in the event of flooding, is a highly efficient and cost effective solution.

And while all flooding is distressing, the damage caused by sewage backflow is always particularly difficult for the homeowner.  The simple addition of a non-return valve to a property’s sewage system will ensure that in the event of a flood, an automatic ‘shut off’ flap activates to stop sewage flowing back into a property. 

And finally

As the old wives would say “an ounce of prevention is better than a pound of cure”.  By researching just a few of the mitigation measures available on the market, installers and homeowners will have a clearer idea of how easy it is to protect a property. Vigilance is essential. Installers should be appropriately qualified to fit products and should always ensure products are Kitemarked, have been rigorously tested and are supplied by a reputable flood defence specialist. 

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