How must individual sheathing pieces be secured?

The requirement to secure individual sheathing pieces to a minimum of three trusses is based on ensuring structural integrity and strength in the construction process. By attaching sheathing to multiple trusses, the load is distributed more evenly across the structure, reducing the potential for sagging, warping, or failure during adverse conditions such as high winds or heavy snow loads. This practice enhances the durability of the building and complies with safety regulations that are designed to promote robustness in construction.

When less than three trusses are used for securing sheathing, the structural support might not be sufficient, possibly leading to weak points in the overall framework. Additionally, having only one or two attachment points could create instability and increase the likelihood of damage over time. Therefore, the recommendation to attach to at least three trusses is a proactive measure to maintain the building's integrity and safety.