Which material is often used for creating fire-resistance-rated walls?

Gypsum board is a widely recognized material for constructing fire-resistance-rated walls due to its inherent properties that help slow the spread of fire. It is composed primarily of gypsum, a non-combustible mineral, sandwiched between layers of paper or other materials, which provides both structural integrity and fire protection. The thickness and composition of gypsum board can be adjusted to meet various fire-resistance ratings, making it a versatile choice for maintaining safety in building designs.

In the context of fire safety regulations, fire-resistance-rated walls are essential for compartmentalizing buildings to prevent the rapid spread of flames and smoke, providing occupants with critical time for evacuation and enhancing overall safety. The use of gypsum board in these walls adheres to established building codes and standards that require specific fire-resistance ratings for walls in different occupancy types.

While materials like wood, steel, and plywood have their own uses in construction, they do not possess the same level of fire-resistance capabilities as gypsum board. Wood and plywood are combustible materials, which can contribute to the spread of fire, while steel, although non-combustible, can lose its structural integrity at high temperatures without proper protective measures. Therefore, gypsum board stands out as the material specifically suited for creating effective