There have been many curved roof styles throughout history made using all manner of different techniques and materials. While curved roofs can also be constructed using tiles and shingles, modern curved roofs most commonly take advantage of the flexibility of metal roofing materials. Metal sheeting can be bent in such a way that it allows for curved surfaces, curved peaks and gently tapered roof edges. Curved roofs take many different forms, and can incorporate a variety of different concaved and convexed elements as required.
There are many different reasons that people opt for curved roofing. The most obvious reason is for their aesthetic appeal - curved lines on the roof of a home allow for a more organic design. Curved roofs can also be used as an alternative to a flat roof or a skillion roof, and may allow for greater indoor areas or extra floors where height restrictions are a concern. In addition, a curved roof may also help to reduce resistance to wind.