Where must roof drains be installed?

Roof drains are crucial for managing water flow and preventing pooling on flat or low-sloped roofs. Installing them at each low point of the roof ensures that water can efficiently drain away, reducing the risk of leaks and structural damage. Water pooling in low areas can lead to added weight and potential failure of roofing materials over time.

Placing drains at the roof edges, on the roof surface, or at every corner of the roof could result in inadequate drainage. For instance, drains at the edges may not effectively capture water accumulating in low areas, while corner drains may not address the needs of the entire surface area. Therefore, positioning drains at all low points provides the most effective solution for proper water management on the roof.