Predefining of runoff pathways through subsidiary buildings
If water cannot (or can only insufficiently) be prevented from entering the building, predefined flow routes in the building may help to minimise the damage. Ideally, provisions should be made for relief openings in the building to ensure that the water can flow away.
Check out the RAINMAN good practice examples:
no good practice example available
- Amt der Oberösterreichischen Landesregierung (2015): Hangwassermanagement Maßnahmenkatalog [management of pluvial floods catalogue of measures] (unpublished brochure, online version accessible at URL: https://www.land-oberoesterreich.gv.at/222593.htm): Abflusswege durchs Nebengebäude
Yvonne Spira, Umweltbundesamt