How far should a row of detectors be located from the peak spacing on a shed ceiling?

In fire alarm installation, the placement of smoke detectors is critical to ensure effective detection and alarm activation. When it comes to the spacing of detectors on a shed ceiling, guidelines indicate that detectors should be positioned at least three feet away from the peak of the ceiling.

This three-foot distance is intended to mitigate the effect of thermal stratification, which occurs in a sloped or peaked ceiling. Warm air and smoke rise towards the peak, and having detectors too close to this area may result in delayed detection due to the accumulation of heat and smoke. Therefore, placing the detectors at least three feet from the peak ensures they are optimally located to detect smoke as it begins to spread away from the high point of the ceiling. This positioning enhances their ability to provide an early warning in the event of a fire.

Overall, this guideline is a crucial part of maintaining safety in spaces with sloped ceilings, and adherence to it is important for effective fire alarm system performance.