For sloped ceilings, how far should a detector be located from the peak?

For sloped ceilings, the general rule is that a smoke detector should be placed a minimum of 0.9 meters (3 feet) from the peak of the ceiling. This positioning takes into consideration the airflow and smoke movement characteristics in sloped ceiling environments. Smoke tends to rise and accumulate near the ceiling, but it can also travel along the sloped surfaces. If a detector is placed too close to the peak, it may not effectively sense smoke that comes from the lower areas of the room, leading to potential delays in alarm activation during a fire event. Thus, maintaining this distance ensures the detector can more reliably detect smoke, enhancing overall safety and response times.