Which feature is NOT typical of a gable roof?

• A. A flat top.
• B. Two sloped sides.
• C. Triangular end walls.
• D. A ridge line along the length.

Answer: (A)

Gable roofs are defined by two sloped sides that meet along a ridge running the length of the building, which creates triangular end walls. Those pitched sides and the long ridge are the telltale features of a gable roof. A flat top would not fit this form, as it signals a flat roof or another roof style. So, a flat top is not typical of a gable roof.