What is referred to as the extension of a rafter beyond the wall line?

The correct term for the extension of a rafter beyond the wall line is known as an overhang. An overhang serves various important functions, including providing shade, protecting the walls from moisture, and enhancing the overall aesthetic appeal of a roof.

Overhangs can also help improve ventilation in the attic space by allowing air to flow freely. This helps regulate temperature and reduce moisture buildup that can lead to mold and decay. In construction, the dimensions of the overhang are typically determined by the roof design and the climate of the area, as longer overhangs may be more beneficial in regions with heavy rainfall.

The term outrigger refers to a structural element used to support the rafter but does not describe the part that extends beyond the wall line. Similarly, eaves are the lower edges of a roof that often include the overhang, but they do not specifically refer to the extension itself. Lastly, brackets are support structures that may hold up the eaves or an overhang but are distinct components in a roofing system. Understanding these distinctions is essential for accurately discussing roofing components.