What term describes the end rafters of the gable overhang?

The term that describes the end rafters of the gable overhang is known as fly rafters. Fly rafters are essentially the rafters that extend beyond the wall of the building to form the overhang at the gable end. This structural feature not only contributes to the aesthetics of the roofline but also plays a functional role in directing water away from the walls and foundation of the building.

In contrast, hip rafters are used in hip roofs where the roof slopes in multiple directions, common rafters are the primary rafters that run from the ridge to the eaves of the roof, and purlins are horizontal beams that provide support for the roof system, typically attached to the tops of the rafters. Each of these terms refers to different elements of roof construction, highlighting the specific role of fly rafters as the distinctive component at the eaves of a gable roof.