What type of roof is characterized by only one sloping plane without hips, ridges, or valleys?

The shed roof is defined by its single sloping plane and is notable for the absence of hips, ridges, or valleys. This design allows for a simple yet effective method of water runoff, making it particularly suitable for areas with minimal rainfall. The straight lines and minimalistic style of a shed roof also lend themselves well to contemporary architectural designs.

The lack of complexities such as valleys and hips simplifies construction and can reduce materials costs. This design is often seen in structures such as storage sheds, workshops, and some modern homes, providing a practical and aesthetically pleasing solution. In contrast, other roof types like the gable, flat, and hip roofs incorporate multiple planes and angles, which introduce added complexity in both design and construction.