Fiberboards are permitted as wall insulation in all types of construction if they are fireblocked in accordance with which chapter in the 2015 IBC?

The correct answer is linked to Chapter 7 of the 2015 International Building Code (IBC), which focuses on fire-resistance-rated construction and the various requirements for fire safety in buildings. In this context, fireblocking is crucial for preventing the spread of fire and smoke within the walls of a structure.

Chapter 7 defines the standards for firestopping, which includes the use of materials like fiberboards as wall insulation. It sets forth guidelines on how materials must be installed and how they are to be spaced or separated to ensure a minimum level of safety during a fire incident. This includes ensuring that fiberboards, when used, must be fireblocked appropriately to comply with these safety measures.

Understanding the importance of this chapter is essential for inspectors, as it ensures that building components are compliant with fire safety regulations, thereby protecting life and property. The other chapters mentioned focus on other construction aspects—for instance, Chapter 3 covers occupancy classification and use, Chapter 11 relates to accessibility, and Chapter 15 deals with roof assemblies and systems—which do not specifically address the fireblocking requirements for insulation materials like fiberboards.