a roof having two slopes of equal breadth and pitch meeting at a common ridge
Word origin
[1815–25]This word is first recorded in the period 1815–25. Other words that entered Englishat around the same time include: artifact, coupon, heuristic, norm, trolley
Examples of 'span roof' in a sentence
span roof
The supporting arch is the longest single-span roof structure in the world.
Times, Sunday Times (2007)
The 40m-tall skyscraper terminal has a single-span roof the size of five football fields using 18,000 tonnes of steel.
Times, Sunday Times (2008)
The arch will be the longest single-span roof structure in the world at 315 metres - the length of three football pitches.