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sprinkler in cavity seiling

Question asked by tb1983 on Jan 21, 2019


my question is:

In an existing builidung (different useres like office, hair dresser, bank ...)  we have an sprinkler system for the rooms now. But in the cavity ceiling (1,65meter, 5,4ft., removable blanket, mineral fiber) was no sprinkler installed. In the ceiling was only kabel for elektric an cooling.


So need we in the cavity ceiling additionally sprinkler there?