span roof

The workers are carefully installing new shingles on the large span roof of the house.

Definition

Noun (countable) - A roof with two sloping sides: A "span roof" is a type of roof that has two inclined surfaces meeting at a ridge, forming a symmetrical shape. It is the most common roof design for rectangular buildings, providing efficient water runoff and structural simplicity.

Usage Examples

• (The roof had two sloping sides meeting at a central ridge.)
• (A roof design with two symmetrical slopes.)

Advanced Usage

• "span roof" is often contrasted with other roof types like flat roofs or gable roofs, but the term specifically emphasizes the continuous, unbroken slope from ridge to eave.
  • The new building’s span roof required careful calculation of the pitch to handle heavy snowfall. (The symmetrical two-slope roof needed precise engineering.)

Variants and Related Words

• Span (n): the distance between two supports, as in a roof's ridge and eave.
  • The roof's span was 12 meters. (The horizontal distance from one side to the other.)
• Roof (n): the covering of a building.
  • The roof was made of slate tiles. (The top protective layer of a structure.)

Synonyms

• Gable roof: a roof with two sloping sides meeting at a ridge, forming a triangular gable at each end.
  • A gable roof is essentially the same as a span roof. (A common synonym in everyday usage.)
• Pitched roof: any roof with a slope, including span roofs.
  • The house had a pitched roof to allow for attic space. (A roof with an incline.)

Related Idioms

• "Under one roof": in the same building or shared space.
  • The company operates all its departments under one roof. (In a single building, not directly related to span roof but using "roof".)