Which material can be used for fireblocking in walls and ceilings?

• A. Wooden battens
• B. Non-combustible materials such as mineral wool or foam fireblocking
• C. Fiberglass insulation
• D. Plastic sheeting

Answer: (B)

Using non-combustible materials such as mineral wool or foam fireblocking for fireblocking in walls and ceilings is the correct choice due to their ability to resist high temperatures and prevent the spread of fire. Fireblocking is a critical aspect of building safety, designed to slow the movement of flames and smoke through concealed spaces, which can be vital for allowing occupants more time to escape during a fire.

Non-combustible materials create a barrier that helps to compartmentalize fires, making them an appropriate choice for this application. In contrast, solutions like wooden battens, while they may be structurally supportive, do not provide the necessary fire resistance and can contribute to fire spread. Fiberglass insulation is not classified as a fireblocking material and may not provide a sufficient barrier against fire. Plastic sheeting is not suitable either, as it is combustible and can fuel a fire rather than inhibit its spread.