Position of the ceiling joists should be coordinated with:

The position of the ceiling joists being coordinated with the rafters is essential for several reasons. Rafters are the structural components that support the roof, and their placement determines the overall design and load distribution of the roof system. When ceiling joists align with rafters, it ensures that both systems work together effectively, improving the overall structural integrity. This alignment is key in transferring loads efficiently and allowing for proper installation of insulation, drywall, and other ceiling materials.

In addition to the structural benefits, proper coordination can also facilitate easier installation of these components, as it helps workers avoid conflicts that might arise if the joists and rafters are misaligned. It streamlines the construction process, reducing the potential for mistakes.

While there are valid considerations for how ceiling joists relate to studs, top plates, and nailers, the rafters are the primary elements that dictate the placement of ceiling joists, making this coordination critical for ensuring a robust and functional building envelope.