If there is a conflict in the IRC between a general requirement and a specific requirement, which requirement must apply?

In the International Residential Code (IRC), when a conflict arises between a general requirement and a specific requirement, the specific requirement takes precedence. This is because specific requirements are designed to address particular conditions, situations, or scenarios that may not be adequately covered by general requirements.

The principle underlying this hierarchy is that specific provisions offer more detailed guidance that is more suited to certain circumstances than broader, general provisions. For instance, if a specific code section outlines distinct parameters for construction in a certain environment or under unique conditions, that specific code section is prioritized to ensure safety, structural integrity, and compliance.

Selecting the specific requirement fosters clarity and ensures that the design and construction adhere closely to the intent and ramifications of that specific situation. In various building scenarios, following a general guideline might leave loopholes or fail to address critical safety concerns that a specific guideline covers effectively. Therefore, when in doubt, the specific requirement must be applied to ensure proper adherence to the code and the welfare of the occupants.