Property Flood Resilience (PFR) Products

What is PFR?

Property Flood Resilience (PFR), also referred to as Property Level Protection (PLP), is an important element of flood risk management. PFR includes measures that reduce the risk to people and property, enabling households and businesses to reduce the damage caused by floods and speed up recovery and reoccupation.

Resistance Measures

These can be fitted to a property, forming a physical barrier between the flood water and the building. These measures aim to reduce the amount of water entering the building, thereby reducing the damage caused internally.

Flood Barriers

Flood barriers can be installed across doorways, gateways or other openings to create a barrier to flood water. Barriers are demountable, so they can be easily fitted when there is a flood risk, then removed and stored away when not needed.

Flood Doors

Flood doors automatically create a water resistant seal when closed, a benefit over barriers which have to be fitted into place when required. Flood windows are also available. Flood windows are also available

Flood Gates

Standard gates can be replaced with flood gates. Like a flood door, once shut and locked, a water resistant seal is formed. Gates can be used in garden walls to keep water away from a property.

Self-Closing Airbricks

Many buildings have airbricks located at ground level around the perimeter for ventilation. These can be replaced with automatic airbricks that allow for air to circulate but do not allow water to enter.

Air Vent Protection

Water can enter the property through any vents connected to internal appliances (e.g. log burner or boiler). Vents can be blocked if redundant or raised above the flood level. Snorkel type measures can also be installed to raise the level of the vent. For any measures associated with combustible fuel sources, a Gas Safe engineer must be consulted.

Sump Pumps

Where a property has a basement or a suspended floor, flood water can enter these voids and cause damage. A sump pump can be installed to control the water level, pumping water out at a faster rate than it is entering, so the water level does not rise significantly.

Portable Pumps

Where the property has a solid floor, if water does enter the property the level can rise causing damage. Portable pumps can be used in combination with other measures, or as a back up in case flood water does still enter the property.

Non-Return Valves

Flood water can flow up through wastewater pipes causing flooding. Non-return valves can be fitted to these pipes so wastewater can flow, but flood water cannot enter. Non-return valves can also be fitted to the foul sewer, preventing sewage backing up through the toilet. If a non-return valve cannot be fitted, a bung can be used to block the toilet.

Tanking

The ground floor of a property can be tanked internally to reduce the ingress of water through the walls and floor.

Silicon Sealing

Flood water can enter properties in the gaps around wires and pipes in walls. Silicon can be used to seal these gaps and increase resilience.

Re-Pointing

Gaps or cracks in walls can allow water to enter. Re-pointing helps to seal gaps, improving the overall condition of the wall and reducing water ingress.

Waterproof Spray

If water stays in contact with a building for a long period of time, it can soak through the wall. A waterproof breathable spray can be applied to external walls to reduce this.

Resilience Measures

These are used to adapt the internal property, aiming to limit the damage caused if water does enter a building. These measures allow the clean-up and repair process to occur quickly, improving the recovery process.

Flood Resilient Walls

The use of water resilient materials and paints on walls can reduce the amount of internal damage. Plasterboard can also be installed horizontally to only the lowest sections is affected if flooding occurs.

Water Resilient Flooring

Suspended timber floors, which are more susceptible to damage, can be replaced with solid concrete floors.
Tiled floors and skirting boards are also easier to clean compared to carpet and laminate which usually need replacing after a flood event.

Electrics

Electrics for the ground floor can be separated from other floors so power can be turned off in isolation. Wiring and plug sockets can be raised up above floor level to improve resilience.

Boilers

Boilers can be relocated to a place where flood risk is reduced. For example, boilers could be wall mounted above the flood level or re-installed on the first floor rather than the ground floor. This will reduce the risk of the boiler being damage during a flood event.

Flood Resilient Kitchens

Kitchens can be constructed using flood resilient materials and appliances fitted in a way that minimises flood risk. For example appliances can be installed above flood level and kickboards can be removable aid recovery and clean up. These same principles can be carried through to other rooms in a property.

Personal or Valuable items

The storage of valuable or personal items should be carefully considered. Can these items be stored on the first floor away from danger or on shelves or bookcases above the flood level

The Flood
Protection Hierarchy

Traditional Defence Schemes

Permanent engineered structures, such as walls, embankments and barriers, can be constructed to manage flood risk. This type of scheme can protect a large number of homes and businesses but can be costly.

Temporary Barrier Schemes

Temporary barriers can be deployed along watercourses by the Environment Agency during flood events.

Property Flood Resilience

Includes measures such as door barriers, that can be fitted to individual buildings to reduce the risk of internal flooding

Sandbags

Sandbags are used widely in communities at flood risk. However, these are an ineffective form of flood protection. Sandbags do not create a watertight seal across doors and come with a range of other issues that make them unsuitable for managing flood risk.

Do Nothing

No management of flood risk.

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The flood resilience hierarchy shows how PFR bridges the gap between traditional flood defence schemes and ineffective sandbags.