UFC 3-600-01
26 September 2006
a separate building. These wall systems are specially developed to protect the
occupants of the attached residences. These walls are structurally independent,
continuous from the foundation to the underside of the roof sheathing (or
continue through the roof to form a parapet) and the wall must be designed to
allow collapse of the construction on the fire side without collapse of the adjacent
separation wall between dwelling units in the building. See Figure 6-4.
Figure 6-4 Attached Duplexes
Sprinkler Protection Required
1 - hour fire
2-hour fire
1 - hour fire
resistive
wall
resistive
partition
(structurally
partition
independent)
6-2.1.2
Townhouse (Attached Single-Family Dwellings).
Townhouses consist of three or more attached dwelling units having separate
dwelling entrances, with the dwelling units separated by 2-hour fire area
separation walls (party/firewalls) such that each unit is considered a separate
building. These wall systems are specially developed to protect the occupants of
the attached residences. These walls are structurally independent, continuous
from the foundation to the underside of the roof sheathing (or continue through
the roof to form a parapet) and the wall must be designed to allow collapse of the
construction on the fire side without collapse of the adjacent separation wall. The
fire walls are designed and constructed to maintain its structural integrity
independent of the unit on the opposite side of the wall. See Figure 6-5.
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