Why do you have to spray on the room without a ceiling?

Because the downspray nozzle cannot collect heat quickly, the reaction speed is slow. The "Spray Regulation" has a regulation on the distance between the nozzle and the top plate (75 150mm), and if you have to spray down, you should set up a heat collector plate;

First of all, you have to determine whether you have to set up a spray, and if so, then it involves choosing whether to spray up, down, or side. The sprinkler head extinguishes the fire by the sprinkler head bursting to spray water;

The sprinkler burst must effectively and quickly receive the heat of the flue gas, when there is no ceiling, the roof version is undoubtedly the place where the hot air flow is gathered, and the sprinkler can burst earlier, of course, there is now the practice of doing the heat collection plate, this practice is generally not recommended, simply put, it is not as safe as the spray, only in the case of must not choose.

First of all, you have to determine whether you have to set up a spray, and if so, then it involves choosing whether to spray up, down, or side. You have to make it clear that the sprinkler fire extinguishing is to spray water by the sprinkler bursting, and the sprinkler burst must effectively and quickly receive the heat of the flue gas, when there is no suspended ceiling, the roof version is undoubtedly a place to gather hot airflow, and the sprinkler can burst earlier, of course, there is now a practice of doing a heat collection plate, this practice is generally not recommended, simply put, it is not as safe as spraying, and only in the case of necessity to choose. Hope it helps.

There are no hard and fast rules, according to the actual situation of the design, configuration.