Übungsseite (Flood resilience built environment - Dryproofing)


Dryproofing is a retrofitting strategy where the water is kept out of the building.


In the case of dryproofing flood water is kept out of the building. Those techniques are generally more cost-intensive than the wet proofing ones and always carry a certain failure risk, as the stability of the building can be jeopardised through the increased water pressure.


The main dryproofing techniques are:

  • sealing; where the building itself i.e. its external walls are used to hold back the flood water and
  • shielding; where the flood water is kept out of the building by installing flood barriers or flood skirts at some distance from the building or a group of estates [*1]. Free standing barriers or anchored barriers (pillars temporarily fixed at a concrete plate) are usually used.

Sealing as well as shielding of buildings and evacuation of the interior requires sufficient preparation time in case the properties are prone to pluvial and fluvial flooding. This time can be extremely short (less than an hour) [*2]. Therefore, for such cases it is important to consider special requirements for, for example, shielding measures (automatic controlling of the system or alarm-based systems).



To see examples of dryproofing measures please click here.

Headers and keywords
Page content

< Previous   Next >

1 2 3 4 5 >

page 4/5




*1 Pasche et al. (2004)

*2 Experience made during the flood events in Hamburg, Summer 2002



Further Information

Tutorial: "Dryproofing"