What is the maximum percentage of wall or ceiling area that curtains, draperies, and similar materials can occupy?

The maximum percentage of wall or ceiling area that curtains, draperies, and similar materials can occupy is set at 10%. This requirement is primarily focused on ensuring that the materials used in buildings do not significantly compromise safety and fire control measures.

Occupying more than 10% of wall or ceiling area with such materials could lead to increased fire loads, potentially creating a hazardous condition in the event of a fire. The regulation is designed to maintain a balanced approach to aesthetics and safety within commercial buildings.

While other percentages may seem viable, they exceed the established fire safety standards and could pose risks in terms of flame spread and smoke development, which is why the 10% threshold is emphasized. This standard protects the occupants by minimizing the chances for rapid fire spread and ensuring that emergency responders have clearer access routes and visibility in emergencies.