Why are trusses preferred over conventional rafter framing?

Trusses are preferred over conventional rafter framing primarily due to their ability to span larger distances without the need for intermediate supports. This strength comes from their triangular design, which efficiently distributes weight and structural loads across the entire frame. The design of trusses utilizes materials more effectively, allowing them to carry heavier loads while reducing the amount of lumber required.

Additionally, the construction of trusses often involves manufacturing in offsite settings, which can be designed and engineered for optimal performance. They provide greater stability and are often engineered to support heavier loads than conventional rafters. This capability is particularly beneficial in design scenarios where open spaces are desired, such as in large rooms or roofs that require clear spans without the interference of posts or columns.

While other options may touch on certain characteristics of trusses, their primary advantage rests in their strength and efficiency for long spans. This makes them particularly valuable in modern construction practices where maximizing space and structural integrity are paramount.