What is the primary reason for requiring additional sprinklers near ceiling fans or similar objects?

The primary reason for requiring additional sprinklers near ceiling fans or similar objects is to avoid obstruction of sprinkler function. In areas where ceiling fans or other ceiling-mounted fixtures are installed, the presence of these objects can impede the distribution of water from sprinklers in the event of a fire. Proper sprinkler coverage is critical for effective fire suppression, and obstructions can prevent water from reaching areas that need it most. By ensuring that additional sprinklers are placed strategically, the design helps maintain the integrity of the fire suppression system, allowing it to operate as intended without interference from nearby fixtures. This consideration is integral to the safety protocols outlined in the International Residential Code.