For New Residential Construction
An automatic fire sprinkler system must be installed throughout all buildings with a Group R occupancy classification. (2006 IBC Chapter 9 Section 903.2.7)
This includes any apartment building with three or more units.
1. One and two family dwellings (single-family & duplexes).
2. Townhouses (single-family dwelling unit constructed in a group of three or more attached units in which each unit extends from foundation to roof and with open space on at least two sides).
Townhouses must meet all the following criteria:
a. Each unit must be separated by an un-penetrated two hour fire wall from ground to roof decking
b. Separate means of egress from each unit
c. Separate electrical meters for each unit.
d. Have separate sewer taps and water taps for each unit.
e. Separate Building permits and plumbing permits for each unit.