The issue of a space that is open on just one side (and if enclosed with be a non-combustible concealed space which is the easiest fix to the protection issue) has been clarified for the next edition. Currently, you have to protect the entire space even if it were 300 ft deep. Keeping mind mind that the sprinklers are there to address the heat from a fire ADJACENT to the opening sprinklers 300 ft away seems a bit extreme, no? We brought this to the committee last cycle and were almost successful in saying add 2 rows (rings) of sprinklers. The amusing part here is that the individual that agreed during the task group meeting then adamantly opposed it during the committee meeting (last cycle) is the one that submitted a similar proposal this cycle. Of course it had to be more confaluded but seemingly precise by saying 60% of the long side of the remote area calculation (which typically is about 2 rings). Nonetheless, you no longer need to protect the entire area above such ceilings.
Roland On Jun 18, 2009, at 6:13 AM, R Richardson wrote: > Not so fast, > > The original question did not clarify if the area above the space is > concealed. Sometimes the drop ceiling does not include any vertical > assembly to create a concealed space (eg: from the floor you can > very clearly above the ceiling). If no concealed space the correct > answer may be that sprinklers are still required. > > Rich Richardson > Seattle Fire Department _______________________________________________ Sprinklerforum mailing list http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum For Technical Assistance, send an email to: [email protected] To Unsubscribe, send an email to:[email protected] (Put the word unsubscribe in the subject field)
