Flood protection solutions

With the special aluminium barrier panels, you can quickly seal off the following areas of your house through which water can penetrate:

• Various openings (e.g. garage entrances and garage doors)
• Various doors (e.g. front doors, entrance doors, basement doors, patio doors, balcony doors, lift & slide doors)
• Windows (e.g. basement windows)

By individually adjusting the length of the barrier panels, it is possible to protect a wide variety of windows, doors and gates from penetrating water. PREFA property protection is suitable both for private use, for example, on a detached house, and for larger company buildings. The barrier panels and permanently installed mounting profiles can be colour-coordinated to match the design of your façade.

Assembling and using PREFA property protection:
when first installed, the mounting profiles are permanently mounted in, behind or in front of, the reveal. Alternatively, the mounting profiles can also be fitted flush with the reveal. When used in the event of flooding, the barrier panels are pushed into the fastener on both sides, and fixed at the top with a compression clamp mounted in place. The lightweight and extremely robust system can be quickly set up in an emergency by just one person, if necessary, as you can see in the following video.

If you wish to protect larger properties or flood-prone areas (e.g. drives, roads or paths) from flooding, you can use PREFA’s flood protection system for perimeters. The protection is provided by aluminium walls which are set up in open areas using ground sleeves. This system is ideal if you wish to protect your house or land, for example, from a stream flowing past which could possibly significantly exceed the normal water level during severe storms.

Assembling and using the PREFA perimeter protection:
when setting the PREFA perimeter protection up for the first time, ground sleeves are mounted in advance. If required, the flood protection walls can be extended or raised following a static test. In individual cases, the mounting uprights (supports) are anchored in the sunken ground sleeve and the aluminium barrier panels are then inserted. The panels and mounting uprights are easy to remove again after use, and the ground sleeves can be sealed with cover plates.

The profile is made from a robust aluminium alloy and, as it requires very little maintenance, it can be stored for long periods without rusting. The profiles are available in three thicknesses (25 mm, 50 mm and 80 mm). Taller designs and wider span widths are possible with the 80-mm system. The aluminium profiles can be easily stacked together via the tongue and groove system. The insertion barrier panels ensure a high level of stability and maximum safety. Both sides of the profiles are inserted into the mounting profiles and fixed at the top by compression clamps. The profiles are available up to a length of 6 m and can be stacked up to a height of 3 metres. Calculating the static load is strongly recommended. The inserted system seal is made of EPDM foam rubber and can easily be replaced if necessary. After use, it is essential to clean and inspect the profile and seals to make sure that they can be used again in the future.

The PREFA flood protection system is available in three different thicknesses:

The 50-mm system weighs only 9.4 kg, and the 80-mm system weighs 11.3 kg per metre. When installing the system for the first time, a ground sleeve should be mounted in advance on a suitable supporting structure. The uprights are easily anchored to the ground sleeve by means of a bayonet locking device without the need for any special tools. Additional supports can be provided if necessary.

For optimum storage of the flood protection system, we recommend using PREFA’s aluminium wall brackets. The barrier panels can be stacked on the wall brackets with the bottom barrier panel at the top of the stack to ensure quick mounting of the system in the event of a flood.

Never allow aluminium to come into contact with aluminium. Use cardboard, plastic or chipboard separating strips to protect the barrier panels from cold welding caused by moisture ingress. The compression clamps can be stored in an additional compartment or on top of the barrier panels.

Regularly maintain your flood protection system by assembling and disassembling it at least once a year. This will allow you to make sure that you remember how to set it up while also checking that the system is complete and in good working order. After use, clean all seals and treat with a non-oily silicone spray. Replace any damaged seals.