Townhouse firewall cantilever

[Otter]

Hi folks,

Townhouse designed to 2018 IRC with two 1-hour walls between units. A portion of each unit at the separation line cantilevers out from the main structure and lands on a double 6x6 post assembly. Does the lack of a foundation along this portion of the firewall create a violation of R302.2.3?


R302.2.3 Continuity. The fire-resistance-rated wall or
assembly separating townhouses shall be continuous from
the foundation to the underside of the roof sheathing, deck
or slab. The fire-resistance rating shall extend the full length
of the wall or assembly, including wall extensions through
and separating attached enclosed accessory structures.

 

[cda]

See if this helps any

Dwelling unit separation at balcony

Five story multi-family R-2 Type VA sprinklered building. [edit: 4 stories VA over 1 story IA, IBC 2015, Colorado, with no relevant local amendments] Some units have "shared" balconies, designed with a non-rated privacy wall provided between them. This privacy wall stops short of the edge of...

www.thebuildingcodeforum.com

 

[Paul Sweet]

The construction supporting the overhang needs to have the same fire rating as the wall.