What is the maximum distance roof drains should be placed apart?

The maximum distance between roof drains should not exceed 30 meters. This guideline is important for ensuring effective drainage on flat or low-slope roofs. When roof drains are placed too far apart, there is a higher risk of water accumulation, which can lead to ponding. Ponding water can contribute to structural issues, leaks, and can drastically reduce the lifespan of roofing materials.

Additionally, spaced at the maximum recommended distance, drains are efficient in quickly removing water during heavy rainfalls, helping to maintain the integrity of the roof structure. Adhering to this maximum distance helps facilitate proper drainage and minimizes potential water-related problems.