What is a common hazard associated with Type V (wood frame) construction?

• A. Hidden void spaces that can allow rapid fire growth and collapse.
• B. Exterior noncombustible walls with noncombustible interior framing.
• C. No interior fire spread.
• D. Wood-frame construction uses only metal connectors.

Answer: (A)

Type V wood-frame construction uses combustible wood for the framing, which makes concealed spaces a major danger. Hidden void spaces—between studs, behind drywall, in attics, and around utilities—can trap and channel heat and flames, allowing a fire to spread rapidly without being detected. As these wooden members heat up, they lose strength quickly, increasing the risk of sudden structural failure or collapse. This combination of hidden pathways and combustible materials is a defining hazard of Type V construction, because the fire can grow and threaten the building much more quickly than in noncombustible systems. The other options describe features not typical of wood-frame construction or misstate fire behavior, such as noncombustible exterior and interior components, no interior fire spread, or exclusive use of metal connectors.