Question

Exit passageway enclosures shall have walls, floors and ceilings of not less than a ____ fire-resistance rating.

Answer 1

Exit passageway enclosures must have a minimum fire-resistance rating to ensure their ability to withstand fire for a specified period. The specific rating may vary.

Step-by-step explanation:

In exit passageway enclosures, the walls, floors, and ceilings are required to have a minimum fire-resistance rating. This rating ensures that these components can withstand fire for a specified period before failing. The specific fire-resistance rating may vary depending on the local building codes and regulations.

For example, in the United States, exit passageway enclosures often require walls, floors, and ceilings with a minimum fire-resistance rating of 1 hour.