zmVault/ibc_s0403.md

id, aliases, tags, title, dg-publish

id	aliases	tags	title	dg-publish
	ibc-403	authorship/other destiny/permanent exclude-from-word-count status/incomplete topic/construction/electrical type/media/reference	SECTION 403---HIGH-RISE BUILDINGS	false

SECTION 403---HIGH-RISE BUILDINGS

403.1 Applicability.

High-rise buildings shall comply with Sections 403.2 through 403.6.

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403.4 Emergency systems.

The detection, alarm and emergency systems of high-rise buildings shall comply with Sections 403.4.1 through 403.4.8.

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403.4.5 Emergency communication coverage.

In-building, two-way emergency responder communication coverage shall be provided in accordance with [[ifc_s0510|Section 510 of the International Fire Code]].

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403.5 Means of egress and evacuation.

The means of egress in high-rise buildings shall comply with Sections 403.5.1 through 403.5.5.

403.5.3 Stairway door operation.

Stairway doors other than the exit discharge doors shall be permitted to be locked from the stairway side. Stairway doors that are locked from the stairway side shall be capable of being unlocked without unlatching where all of the following conditions occur:

1. Individually or simultaneously upon a signal from the fire command center.
2. Simultaneously upon activation of a fire alarm signal in an area served by the stairway.
3. Upon failure of the power supply to the lock or the locking system.

403.5.3.1 Stairway communication system.

A telephone or other two-way communications system connected to an approved constantly attended station shall be provided at not less than every fifth floor in each stairway where the doors to the stairway are locked. Systems shall be listed in accordance with UL 2525 and installed in accordance with NFPA 72.