First layer sprinkler above suspended ceiling
First layer sprinkler above suspended ceiling
(OP)
We are designing a sprinkler system for a shopping mall. The height of the shops are 6 m. and there is a suspended ceiling 4 m. above the floor. The height between the suspended ceiling and the ceiling is 2 m. There will be sprinklers installed for the fire protection of shops. Do we have to design a first layer sprinkler system above the suspended ceilings to protect the space between the suspended ceiling and the ceiling?
Thanks.
Thanks.





RE: First layer sprinkler above suspended ceiling
RE: First layer sprinkler above suspended ceiling
RE: First layer sprinkler above suspended ceiling
Thanks
RE: First layer sprinkler above suspended ceiling
8.14.1.3 Concealed Space Design Requirements. Sprinklers in concealed spaces having no access for storage or other use shall be installed in accordance with the requirements for light hazard occupancy.
RE: First layer sprinkler above suspended ceiling
RE: First layer sprinkler above suspended ceiling
Or are we saying the sprinkler protection above the ceiling is designed as Light Hazard?
RE: First layer sprinkler above suspended ceiling
Yeah. The system for the concealed spaces above the ceiling are Light Hazard. The system for space below the ceiling would be OH2 or greater if dictated by the insurance carrier.
I hope that makes more sense now
RE: First layer sprinkler above suspended ceiling
I understand now. I just wanted to make sure that everyone else did because a Light Hazard Mall is not contemplated in the world I live in.