Which of the following is NOT a requirement for smoke alarm placement?

The placement of smoke alarms is crucial for ensuring their effectiveness in detecting smoke and alerting occupants to potential fires. One important guideline for smoke alarm installation is that they should be positioned at least 12 inches away from any corners to avoid being ineffective due to airflow patterns that can occur near corners. This ensures that the alarm can detect smoke effectively without being obstructed.

The requirement regarding mounting on a flat surface is essential as it ensures that the alarm functions correctly and can detect smoke as intended. Additionally, having smoke alarms installed in every bedroom is a crucial safety measure, as it provides immediate notification to occupants during nighttime or when sleeping. The guidance for installing alarms on interior walls is also significant, as it specifies optimal placement for smoke detection.

Thus, the option regarding the placement of smoke alarms at least 12 inches from the corner represents a crucial guideline that is not just a preference but a requirement based on airflow dynamics in a room, contributing to better functionality in smoke detection.