connecting buildings

[wade.martin]

Can anyone tell me is there a code requirement for two connecting buildings
having a common fire alarm or the two fire alarms to be connected to each
other.
In what code can I find this

 

[Michael Baker]

As far as I know, there is no national model code requirement for two
buildings to share a common alarm system or that they be
interconnected. There may be a local requirement to do so (Denver
comes to mind). NFPA 72 minimum requirements are to annunciate by
floor and by building. See NFPA 72-2002 4.4.6.1.2 and A.4.4.6.1.2. If
your locality prosecutes the IBC, see IBC-2003 907.8.

In my opinion, each building in your example is permitted to be
annunciated separately by street address, so long as the building were
1 floor, less than 22,500 ft^2 in size, and no more than 300 ft in
length or width.

 

[Nick Markowitz]

I have a nursing home with a connecting walkway and connected the systems
together to warn all residents in both buildings to potential danger. if one
caught fire it is close enough to singe the other the local ahj agreed it
was a good thing to do. however I can not find a code section that requires
it.