Which is not a material used to encase or protect the structural steel from the heat of the fire

Which is not a material used to encase or protect the structural steel from the heat of the fire

• A. Styrofoam Insulation
• B. Brick
• C. Gypsum board
• D. Metal cladding

Answer: (A)

Fireproofing structural steel relies on barriers that slow heat transfer and keep the steel from losing strength during a fire. Brick masonry acts as a heat shield and can maintain strength for a specified fire duration. Gypsum board is used in fire-rated assemblies to resist heat and help keep structural elements protected. Metal cladding provides a protective envelope that can shield the steel when designed for fire resistance. Styrofoam insulation, however, is a plastic foam that is combustible and will melt and burn when exposed to high heat, releasing smoke and gases. It does not provide the necessary fire resistance and would actually undermine the steel’s protection.

Fireproofing structural steel relies on barriers that slow heat transfer and keep the steel from losing strength during a fire. Brick masonry acts as a heat shield and can maintain strength for a specified fire duration. Gypsum board is used in fire-rated assemblies to resist heat and help keep structural elements protected. Metal cladding provides a protective envelope that can shield the steel when designed for fire resistance. Styrofoam insulation, however, is a plastic foam that is combustible and will melt and burn when exposed to high heat, releasing smoke and gases. It does not provide the necessary fire resistance and would actually undermine the steel’s protection.