Which chapter contains the majority of IBC's 2015 roofing-related requirements?

The majority of the International Building Code (IBC) 2015 roofing-related requirements are detailed in Chapter 15. This chapter specifically addresses roofing systems, materials, and installation guidelines. It outlines the minimum standards for durability, structural integrity, and protection against environmental factors such as moisture and wind loads that roofing systems must meet to ensure safety and efficacy.

Chapter 15 covers essential topics like roofing classifications, safety considerations, and specific performance criteria for different roofing materials. It serves as an important reference for architects, engineers, and contractors when designing and implementing roofing systems that comply with the building codes.

Understanding the significance of Chapter 15 is vital for those involved in roofing projects, as it provides the necessary framework for compliant and safe roofing practices. This is why the correct answer highlights Chapter 15 as the key section for roofing requirements within the IBC.