Ontario Building Code Practice Exam 2025 - Free Building Code Practice Questions and Study Guide

Fire-rated curtain assemblies are designed to slow down the spread of fire and smoke in a commercial building, giving occupants more time to evacuate. To be effective, they must meet certain requirements. These include being labeled with a fire rating, which indicates the amount of time the curtain can withstand fire and heat. The curtain must also be continuous from wall to wall, meaning there are no gaps or openings that can allow fire to pass through. In addition, the curtain must have a minimum height of 2.4 meters to prevent the fire from jumping over the top. The incorrect option, D, refers to solid core construction, which is not a requirement for a fire-rated curtain assembly but may be an important consideration for maximizing its effectiveness. Solid core construction means the curtain is made of a single piece of material without any seams or openings, but it is not necessary for meeting fire safety requirements.