What is the primary purpose of webbing in a truss?

The primary purpose of webbing in a truss is to connect the top and bottom chords. This connection is crucial as it helps distribute loads evenly throughout the structure, thereby enhancing its stability and strength. By providing support and maintaining the geometric shape of the truss, webbing enables the structure to efficiently resist various forces such as tension and compression.

Webbing plays a vital role in the overall structural integrity, allowing for effective load transfer between different parts of the truss. As loads are applied, the webbing helps to minimize deflections and prevent potential failures by keeping the top and bottom chords aligned and connected, ensuring the truss performs as intended.

The other options do not adequately describe the function of webbing within a truss structure, as it is not designed for weight addition, aesthetic purposes, or insulation. Each of these functions pertains to different aspects of building design or material usage but are unrelated to the specific mechanical role of webbing in truss construction.