I am working on a project with a lot of 20x20 rooms in dwelling units. I have a concrete deck so my piping will be exposed. I am trying to find a 20x20 solutions but keep running in to road blocks. Maybe someone has an idea.
The way I see it, I need one of the following … I need a residential pendent sprinkler that can be installed with a deflector distance from the deck greater than allowed by NFPA 13 OR I need a residential UPRIGHT sprinkler listed for 20x20 spacing OR I need a listed hanger attachment that will allow me to install 1" branch piping tight to a concrete deck. And go. John Irwin DynaFire, Inc.
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