It seems like in 2021 IBC 706.5 horizontal continuity still have the exception of not extending the fire wall 18" beyond the exterior surface of exterior walls. However, in 2021 New Jersey IBC,
Firewalls shall be made smoke tight at the junction of exterior walls. In exterior wall construction employing studs, the wall shall extend through the stud space to the exterior sheathing.
Does it mean I can stop the firewall per 706.5 stated but don't need to rate the 4' wall on both sides of the fire wall as stated in the IBC 2021?
Thanks,
706.5 Horizontal Continuity
Firewalls shall be made smoke tight at the junction of exterior walls. In exterior wall construction employing studs, the wall shall extend through the stud space to the exterior sheathing.
Does it mean I can stop the firewall per 706.5 stated but don't need to rate the 4' wall on both sides of the fire wall as stated in the IBC 2021?
Thanks,