Tim H Posted August 30, 2008 Report Share Posted August 30, 2008 Is anyone aware of an exception for fire separation requirements between a garage and a living space above, if there is a sprinkler system installed in the garage? Todays inspection (new construction), had the usual lack of fire separation and exposed vinyl flex ducts in the basement garage, but in this case there is a sprinkler system. I anticipate that the builder will use the sprinkler as a reason for no separation. Thanks, Tim Quote Link to comment Share on other sites More sharing options...
Darren Posted August 30, 2008 Report Share Posted August 30, 2008 Tim, Under section R309, there are no exceptions to the fire separation requirement. As you also pointed out, the flex ducts are also not allowed. If any part of the supporting wall is wood, that also needs to be rated. It's ironic, I was taught that the supporting members had to have at least the same rating as what is required for what it's supporting; however in the 2003 IRC, 1/2 inch is clearly called for the walls when 5/8 inch is on the ceiling. Quote Link to comment Share on other sites More sharing options...
Bob White Posted August 30, 2008 Report Share Posted August 30, 2008 I won't cite the code since it soesn't apply in AL, but the great state of Georgia has modified its version of the IRC to allow sprinkler systems in lieu of separation. Alabama may have done the same? Quote Link to comment Share on other sites More sharing options...
Brandon Whitmore Posted September 1, 2008 Report Share Posted September 1, 2008 From my common sense stand on this, to heck with the fire separation when you have a fire sprinkler system installed (when functional). I am super picky on separation issues in garages (99 of 100 written up). Super heated gases can squeak through most any gap-- the sprinkler system should prevent the spread of the fire before that's an issue. Sorry--no code help. Quote Link to comment Share on other sites More sharing options...
Tim H Posted September 1, 2008 Author Report Share Posted September 1, 2008 Originally posted by Brandon Whitmore From my common sense stand on this, to heck with the fire separation when you have a fire sprinkler system installed (when functional). I am super picky on separation issues in garages (99 of 100 written up). Super heated gases can squeak through most any gap-- the sprinkler system should prevent the spread of the fire before that's an issue. Sorry--no code help. Thanks to all. I agree on the application of common sense regarding the fire separation. I still dont like the flex ducts because of the possibility of CO getting into the (easily damaged) ducts. Am I over thinking this, or do you think my concern is legitimate? Tim Quote Link to comment Share on other sites More sharing options...
Brandon Whitmore Posted September 1, 2008 Report Share Posted September 1, 2008 I still dont like the flex ducts because of the possibility of CO getting into the (easily damaged) ducts. Am I over thinking this, or do you think my concern is legitimate? Your concerns are legitimate. Quote Link to comment Share on other sites More sharing options...
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