When doing warehouse roof sprinkler protection with racks and offices, assuming that the warehouse roof requires one control valve, would the racking need its own designated control valve? Is it possible to tap off the racking control valve and feed the offices or the offices also require their own control valve? Which will total to 3 control valves. 1 for Warehouse Roof, 1 for Racks and 1 for Office Ceilings.
Please refer me to chapters I can read to get answer regarding this situation.
ps: Trying to understand American standards in Africa