I am working on an ESFR system (Tenant Improvement) and have an area where a 
wall is being built to the bottom of (Girders/Bar Joist) directly below a 
branchline with ESFR heads. I could not find (or I am misunderstanding an 
interpretation) any floor mounted or suspended obstructions rules (similar to 
SSP's & SSU's). It is a Tyco 25.2K head.  branchlines are spaced 8' on one side 
and 10' on other side. Any comments would be appreciated.
Thanks,George Medina Jr.
Sr. Fire Sprinkler DesignerSINGLETON FIRE PROTECTION INC.Office: (818) 
252-5744Cell: (323) 906-5701
Business Hours: 9:00am-5:00pm
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