Which wall feature extends above the roof line?

• A. Parapet wall
• B. Curtain wall
• C. Non-bearing wall
• D. Partition wall

Answer: (A)

Parapet walls are the portion of a wall that projects above the roof surface, running along the top edge and extending past the roofline. That rising extension is exactly what the question is asking about, so this is the correct choice. Curtain walls, non-bearing exterior walls, and interior partition walls generally meet the roof at or below the roofline and do not extend above it, which is why they don’t fit the description. In practice, a parapet often serves edge protection and can influence how roof systems and fire barriers are detailed at the roof edge.