Heads up: There are no suggested sections in this chapter.
Heads up: There are no amended sections in this chapter.
  1. For buildings in designated flood hazard areas, any work that constitutes a substantial improvement or repair of substantial damage of the existing building, as determined by the local floodplain administrator, shall comply with the applicable flood-resistant construction requirements below. As defined in the National Flood Insurance Program rules, 44 CFR 59.1, " 'substantial improvement' means any reconstruction, rehabilitation, addition, or other improvement of a structure, the cost of which equals or exceeds 50 percent of the market value of the structure before the 'start of construction' of the improvement. This term includes structures which have incurred 'substantial damage,' regardless of the actual repair work performed." As defined in these Federal rules, " 'substantial damage' means damage of any origin sustained by a structure whereby the cost of restoring the structure to its before damaged condition would equal or exceed 50 percent of the market value of the structure before the damage occurred."
    1. Group R-5 buildings: Sections R301.2.4, R322, R406.1.2.1, R408.7, M1301.1.1, M1401.5, M1601.4.10, M1701.2, M2001.4, M2201.6, and G2404.7 of the one- and two-family dwelling subcode.
    2. All other buildings:
      1. Building subcode: Sections 801.5, 1203.4.2, Exception 5, 1403.6, 1403.7, 1603.1.7, 1605.2.1, 1605.3.1.2, 1612, 1804.5, and 1805.1.2.1.
      2. Mechanical subcode: Sections 301.16, 401.4, 501.3.1, 602.4, 603.13, 1206.9.1, and 1305.2.1.
      3. Fuel gas subcode: Section 301.11.
Analyzing code differences
UpCodes Premium
Leverage the most sophisticated code compliance platform.
TRY FREE FOR TWO WEEKS VISIT PRICING