Illinois Roofing Practice Exam

Using bridging between joists primarily increases load distribution and stability within the structure. When bridging is installed, it connects the joists together, helping to create a more rigid framework. This connection allows the load to be spread evenly across the joists, which can prevent excessive bending or flexing. This is particularly important in supporting the weight of roof systems and any additional loads from weather-related factors, such as snow accumulation.

Additionally, bridging enhances the overall structural integrity by reducing the likelihood of joists twisting and separating over time. This contributes to a safer and more sound building, ensuring that the roofing system is well-supported. The other aspects, like aesthetic appeal, thermal expansion, or pest prevention, while important considerations in construction, do not directly relate to the primary function of bridging. These alternatives do not address the fundamental role bridging plays in enhancing the stability and load management of joist systems.