What percentage of roofs in manufactured housing is constructed with lightweight truss systems?

The correct choice reflects that approximately 60% of roofs in manufactured housing are constructed using lightweight truss systems. This understanding is significant because lightweight truss systems are commonly utilized in the construction of manufactured homes due to their cost-effectiveness, ease of installation, and ability to support various roofing materials while allowing for larger open spaces without the need for intermediate supports.

Knowing this percentage is crucial for safety officers and emergency responders, as it informs them about the structural integrity and behavior of roofs during fire emergencies or other incidents. Lightweight trusses can fail rapidly when exposed to fire, which greatly affects the fireground operations and risk assessment, highlighting the importance of understanding the construction techniques used in these homes. This knowledge helps in making informed decisions regarding safety measures and strategies while ensuring the safety of both occupants and responders.