Making Sense of Overflow Roof Drains for Flat Roofs
If you've ever stood on a flat roof after a massive rainstorm and wondered why there are two sets of pipes poking through the walls, you're looking at your overflow roof drains doing their job. It's one of those things most people never think about until their ceiling starts dripping—or worse, starts sagging. But in the world of commercial and flat-roof residential building, these secondary drains are essentially the unsung heroes that keep the whole structure from buckling under the weight of a sudden deluge. ...