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// CODE SNIPPET

711.2.3 Supporting Construction

Building Code 2018 of Illinois > 7 Fire and Smoke Protection Features > 711 Floor and Roof Assemblies > 711.2 Horizontal Assemblies > 711.2.3 Supporting Construction
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The supporting construction shall be protected to afford the required fire-resistance rating of the horizontal assembly supported.
Exception: In buildings of Type IIB, IIIB or VB construction, the construction supporting the horizontal assembly is not required to be fire-resistance rated at the following:
  1. Horizontal assemblies at the separations of incidental uses as specified by Table 509 provided that the required fire-resistance rating does not exceed 1 hour.
  2. Horizontal assemblies at the separations of dwelling units and sleeping units as required by Section 420.3.
  3. Horizontal assemblies at smoke barriers constructed in accordance with Section 709.

Related Code Sections


3104.5.1.3 Special Construction, Supporting Construction
The fire barrier shall be supported by construction as required by Section 707.5.1 ...
Building Code 2021 of Illinois > 31 Special Construction > 3104 Pedestrian Walkways and Tunnels > 3104.5 Connections of Pedestrian Walkways to Buildings > 3104.5.1 Fire Barriers > 3104.5.1.3 Supporting Construction
3104.5.1.3 Special Construction, Supporting Construction
The fire barrier shall be supported by construction as required by Section 707.5.1 ...
Building Code 2018 of Illinois > 31 Special Construction > 3104 Pedestrian Walkways and Tunnels > 3104.5 Connections of Pedestrian Walkways to Buildings > 3104.5.1 Fire Barriers > 3104.5.1.3 Supporting Construction
707.5.1 Fire and Smoke Protection Features, Supporting Construction
The supporting construction for a fire barrier shall be protected to afford the required fire-resistance rating of the fire barrier supported ...
Building Code 2021 of Illinois > 7 Fire and Smoke Protection Features > 707 Fire Barriers > 707.5 Continuity > 707.5.1 Supporting Construction
707.5.1 Fire and Smoke Protection Features, Supporting Construction
The supporting construction for a fire barrier shall be protected to afford the required fire-resistance rating of the fire barrier supported ...
Building Code 2018 of Illinois > 7 Fire and Smoke Protection Features > 707 Fire Barriers > 707.5 Continuity > 707.5.1 Supporting Construction
708.4.1 Fire and Smoke Protection Features, Supporting Construction
The supporting construction for a fire partition shall have a fire-resistance rating that is equal to or greater than the required fire ...
Building Code 2018 of Illinois > 7 Fire and Smoke Protection Features > 708 Fire Partitions > 708.4 Continuity > 708.4.1 Supporting Construction
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