What type of roof has all four sides sloping to a common point?

A roof type where all four sides slope downwards towards a common point is known as a hip roof. This design features slopes that typically meet at the top, creating a peak. The hip roof provides stability and has a symmetrical appearance, which contributes to its aesthetic appeal. It is advantageous in areas prone to high winds or heavy rainfall, as the sloped sides help with water drainage and reduce the likelihood of wind uplift.

The other roof types mentioned have distinct characteristics that set them apart. A flat roof has a minimal pitch, often leading to issues with drainage, while a gable roof features two sloping sides but does not encompass four slopes meeting at a single point. An onion roof, primarily found in eastern architecture, is bulbous in shape and also does not share the same structural characteristics as a hip roof. Understanding these differences is crucial for identifying roof types effectively.