To ensure stability, interior finish materials must withstand room temperatures of 200°F for at least how many minutes?

To ensure stability, interior finish materials must be able to withstand high temperatures without losing their structural integrity or compromising safety. For temperatures of 200°F, the requirement for endurance is set for a duration of at least 30 minutes. This duration is significant because it allows for a reasonable amount of time during a fire scenario, providing occupants with an opportunity for safe evacuation and minimizing the spread of fire.

Materials tested at this temperature for the specified time must demonstrate their ability to resist ignition and deformation, which contributes to the overall fire safety of a building. This criteria is essential in commercial buildings, where interior finishes can greatly influence fire performance and safety measures put in place to protect occupants and property. Understanding this requirement is critical for inspectors when evaluating the materials used in construction and their compliance with fire safety regulations.