I am building a timber frame home in an area that requires sprinkler systems. I am in the process of trying to find ways of hiding the piping (1" dia.) necessary to supply the water to the sprinkler heads and finding it very difficult. The problem areas are the vaulted ceilings that have SIP's attached and consequently no open area to hide the piping. Is anyone aware of some tricks / details that I might be able to use? I would greatly appreciate any advise. Thanks