What distinguishes Class 5 Modified Fire Resistive construction from Class 6 Fire Resistive construction?

Class 5 Modified Fire Resistive construction is characterized by having a fire resistive rating of less than 2 hours. This means that while it offers some protection against fire, it does not meet the more stringent standards required for higher classifications. Understanding this classification is important, as the fire resistive rating impacts building codes, insurance requirements, and safety assessments.

In contrast, Class 6 Fire Resistive construction is recognized for having a fire resistive rating of 2 hours or more, indicating it can withstand fire for a longer duration, providing enhanced safety for occupants and greater resistance to fire spread. Consequently, this distinction in fire resistive ratings differentiates Class 5 from Class 6 constructions and reflects their intended use and level of safety in fire scenarios.