Final answer:
A hip rafter is the roof member that extends diagonally from the end of a ridge to the outside corner of an exterior wall, providing crucial structural support for the roof.
Step-by-step explanation:
The blank in the question should be filled with the term hip rafter. A hip rafter is a structural component in roof construction that extends diagonally from the ridge of the roof to the external corner of the building's wall. Unlike the pilaster, which is a decorative feature that provides the illusion of support while projected from a wall, the hip rafter is essential for the strength and stability of the roof structure. The hip rafter bears the weight of the roof and transfers it to the walls, ensuring proper support for the edges of the roof where it meets the exterior walls.Moreover, the understanding of how a hip rafter functions is important for designing a robust and structurally sound roof. It is neither solely an aesthetic feature like a pilaster nor just a barrier like a parapet. The hip rafter plays a key role in the framework of a roof by connecting the ridge and the corners of the walls, thus completing the transition from the sloping roof to the straight walls of the building in a smooth, integrated manner.Conclusion In summary, a hip rafter is an essential part of a roof's framework that provides support and stability to the structure, helping to secure the integrity of the building's roofline.