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IBC Chapter 14 — Exterior Walls

Updated Mar 26, 2026
Cladding, water-resistive barriers (WRB), flashing, wind pressure, fire-resistance of exterior walls.

IBC Ch14: 1403 WRB required behind all exterior cladding. Flashing at openings, shelf angles, kick-out flashings. 1404 materials: vinyl (ASTM D3679), fiber cement (C1186), stucco (C926), EIFS, metal panels. 1406 combustible coverings limited by fire separation and construction type. 1407 MCM (metal composite materials): NFPA 285 fire testing.

TAGS
IBCcladdingWRBflashingexterior-wallNFPA-285
DETAILS
code year
2024
code section
Chapter 14
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