What type of materials are used for constructing fire-resistant walls?

Fire-resistant walls are primarily constructed using materials that can withstand high temperatures and limit the spread of fire. Gypsum board, commonly known as drywall, is specifically designed to provide fire resistance. The core of gypsum board contains non-combustible gypsum, which can effectively slow down the transfer of heat and delay the onset of flames, thereby enhancing fire safety in buildings.

In addition to its fire-resistant properties, gypsum board is widely used in commercial and residential construction due to its ease of installation and versatility in creating various wall assemblies. Its ability to provide a barrier against fire makes it a preferred choice for constructing walls that are required to meet fire safety codes and regulations.

When considering other materials, while steel can offer significant structural integrity and fire resistance when properly treated or protected, it is not as effective in terms of creating wall assemblies on its own without additional components. Metal studs, while often used in framing, do not inherently possess fire-resistant properties without additional fire-rated materials. Wood, conversely, is not fire-resistant and can contribute to the rapid spread of fire, making it unsuitable for this specific application.