extending coverage 15' into lower hazard

[sac32079]

When extending the coverage from the higher hazard 15' into the lower hazard, how do you separate the two systems? And am I allowed to use diferent k-factors in the lower hazard area? I have a warehouse with rack storage attached to an OH GP 2. Is there a way that I can avoid spacing into the lower hazard?

 

[stookeyfpe]

Draft curtains can be used to provide a physical separation between two different sprinkler systems in the same building.