What is the highest point on a gable roof called?

The highest point on a gable roof is called the ridge. This term refers to the horizontal line where the two sloping sides of the roof meet at the top. The ridge is crucial in roof design as it not only signifies the highest elevation of the roof structure but also plays a role in the overall stability and shape of the roof.

Unlike other terms in the choices, "peak" can sometimes be used colloquially to refer to the highest point, but in technical terminology within architecture and roofing, the more precise term is "ridge." Additionally, "overhang" refers to the portion of the roof that extends beyond the walls of the house, and "valley" describes the lower point where two roof slopes meet, which further distinguishes why "ridge" is the most accurate term for the highest point on a gable roof.