Pitched roofs are a type of roofing structure that is characterized by having two sloping sides that meet at the top. They are commonly used in residential and commercial buildings, as well as in tents. The term 'pitched roofs' is derived from the fact that the roof has an angle or slope to it, which allows for better drainage and ventilation. Tents are a type of temporary shelter that typically have a pitched roof, allowing for more space and ventilation inside.