3.2 International Building Code and ASCE 24

The flood provisions i n t he latest published editions of the IBC meet or exceed the NFIP requirements for buildings largely through reference to the standard ASCE 24, Flood Resistant Design and Construction, developed by the American Society of Civil Engineers (ASCE). The IBC applies to all applicable buildings and structures. While primarily used for buildings and structures other than dwellings within the scope of the IRC, the IBC may be used to design dwellings. The IBC and ASCE 24 requirements related to the use of corrosion-resistant fasteners (often used for maintaining a building load path), which are summarized in Table 2, are more specific than NFIP regulations and also apply to areas where the minimum elevation requirements are above the base flood elevation (BFE) by the incorporation of freeboard.

Although Table 2 refers to selected requirements of the 2018 IBC and ASCE 24-14 (noting changes from 2015 and 2012 IBC and ASCE 24-05), subsequent editions should include comparable requirements.

Table 2: Comparison of Select 2018 IBC and ASCE 24-14 Requirements with NFIP Requirements
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