Regarding fire rated partitions, which statement is true?

• A. They must be painted red
• B. Use Type X GWB (contains fiberglass), 1 hour rated, built full height
• C. They are optional
• D. They are only used in ceilings

Answer: (B)

Fire-rated partitions are interior walls designed to resist fire for a defined period, creating a safe barrier between spaces. To achieve that resistance, they’re typically constructed with Type X gypsum wallboard, which has a fiberglass-reinforced gypsum core that slows heat transfer. When this board is installed as a full-height wall—from floor to the structural ceiling—with proper framing and joint/penetration treatment, the assembly can achieve a rated fire resistance, commonly about 1 hour. That combination—Type X gypsum board, a 1-hour rating, and full-height construction—is the standard approach for reliable fire separation between occupancies or tenant spaces. Painting the wall red has no bearing on fire performance, these walls are not optional in code-required separations, and fire-rated partitions are not limited to ceilings; they are walls that run the full height to effectively separate spaces.