Why are flat roofs dark colours?

Flat roofs are often constructed with dark colors because dark materials, such as asphalt or modified bitumen, absorb heat more efficiently. This helps to melt snow and ice during winter, reducing the risk of water pooling and leaks. Additionally, dark colors can help lower energy costs in colder climates by retaining heat and improving energy efficiency. Lastly, darker roofs can be more durable, as they are less susceptible to UV damage.