What type of gypsum is considered fire resistant?

Type X and Type C gypsum are specifically manufactured to offer enhanced fire resistance compared to standard types of gypsum board. Type X gypsum contains additives that slow down the spread of flames and improve the board's ability to withstand elevated temperatures for longer periods. This makes it a popular choice for fire-rated wall assemblies and ceilings in both residential and commercial construction.

Type C gypsum goes a step further by adding glass fibers, which provide even greater fire resistance and help to prevent the board from sagging when exposed to heat. This additional structural integrity under high temperatures makes Type C suitable for more demanding fire-rated applications.

Together, these types are essential in ensuring compliance with fire safety regulations, as they help to protect the structural elements of buildings and provide crucial time for evacuation in case of fire emergencies. This understanding is vital for residential building contractors who must adhere to codes and standards for safety.