Which of the following is NOT a function of sheathing?

Sheathing plays several important roles in the construction of a building, primarily related to its structural integrity and weather resistance. It helps support siding, providing a surface for it to attach to, and adds stiffness to the walls, which helps prevent racking – the sideways movement of walls that can occur during events such as strong winds or earthquakes. Additionally, sheathing contributes to the building's overall ability to resist wind and helps keep the elements out, contributing to energy efficiency and indoor comfort.

The function of supporting metal ties for brick veneer, however, is not a primary role of sheathing itself. Instead, metal ties are typically anchored to structural framing members, like studs or masonry, which provide direct support to the brick veneer. While sheathing may indirectly contribute by providing a surface for them to attach to, its main functions do not include supporting these metal ties directly. Thus, identifying this option as not a function of sheathing aligns with the understanding of the construction and architectural principles involved.