Fire-rated gypsum board is a type of drywall that is designed to resist fire and prevent it from spreading. It is made with special additives that give it a higher level of fire resistance than standard drywall. Fire-rated gypsum board is often used in commercial buildings and other structures where fire safety is a top priority.

Fire-rated gypsum board is typically classified by its fire-resistance rating, which is determined by testing the material in a laboratory setting. The rating indicates how long the material can withstand exposure to fire before it fails or allows a fire to spread. For example, a one-hour fire-rated gypsum board can resist fire for one hour before failing, while a two-hour fire-rated gypsum board can resist fire for two hours.

In addition to its fire-resistance properties, the fire-rated gypsum board also offers other benefits. It is easy to install, lightweight and can be cut to size with standard tools. It also has good sound-dampening properties, which can be useful in buildings where noise control is important.

Overall, a fire-rated gypsum board is an important building material for structures where fire safety is a top priority. Its ability to resist fire and prevent it from spreading can help save lives and protect property in the event of a fire.