Increasing the stringency of the design criteria for flood hazards enhances the ability to resist damage to the building and reduce loss of contents. This enhances sustainability by minimizing how much building materials will be required to restore the building and reducing the amount of materials entering landfills. Additional benefits are enhanced life safety, potentially less demand on community resources required for emergency response and allowing facilities to be more readily adapted for re-use if there is a change of occupancy in the future. When organic materials and most building contents are damaged by flood waters, contamination prevents reuse and they must be disposed.

Intent - To minimize the amount of building materials and contents that become contaminated or otherwise irreparably damaged by flood water. Further, flood-resistant construction is less likely to generate debris and contaminants that pollute the downstream environment. Flood resistant design and construction allows development in flood prone areas along river fronts, lake shores, and other bodies of water attractive to businesses and residents.
Appendix G  Flood Resistant Construction, 2012 International Building Code Commentary