Why are sprinkler heads located at different heights in a system?

Sprinkler heads are located at different heights in a system primarily to ensure optimal spray coverage based on ceiling elevations. Different areas of a building may have varying ceiling heights, and the placement of sprinkler heads must be adjusted accordingly to maximize the effectiveness of the sprinkler system. By positioning the heads at appropriate heights, the system can effectively distribute water in the event of a fire, ensuring that the entire area is adequately covered and that there are no gaps in protection.

This strategic placement is critical in achieving the required flow rates and spray patterns, which are influenced by the height at which the heads are mounted. A properly designed system takes into consideration the unique architectural features of a building and provides the necessary fire protection without leaving any area vulnerable.

Other options might mention requirements, aesthetics, or interference with systems, but optimal spray coverage remains the primary concern in the installation and design of sprinkler systems.