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IBC Section 2808 — High-Rise Building Exterior Walls

Updated Apr 3, 2026
Establishes non-combustibility and fire-resistance requirements for high-rise building facades.

Section 2808 requires high-rise building exterior walls to be noncombustible. Combustible insulation is not permitted (foam plastics prohibited). Insulation must be noncombustible mineral or glass fiber. Interior finishes on air plenums must be non-combustible. Spandrel glass between floors must be fire-rated to prevent fire spread. Balcony railings must not project more than 18 inches to prevent fire spread between units.

TAGS
ibchigh-riseexterior-walls
DETAILS
section
2808
category
High-Rise Buildings
code body
IBC
code year
2021
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