What is the primary material used for fireblocking in construction?

Fireblocking is a critical aspect of construction, particularly in preventing the spread of fire and smoke through the wall and ceiling cavities of buildings. The primary material used for fireblocking in construction is wood or other similar materials. This is because wood is widely available, easily manipulated, and can be effectively used to create barriers that interrupt the flow of fire and smoke through concealed spaces.

In addition to wood, similar materials like gypsum board may be used in conjunction with wood for fireblocking, enhancing the overall effectiveness in achieving a fire-resistive barrier. This approach not only meets building codes and safety regulations but also ensures structural integrity and protection for occupants in the event of a fire. Other options like metal sheeting, concrete masonry, or fiberglass panels, while useful for different applications, do not serve the same primary purpose as wood in fireblocking.