Why Are Box Gutters Used
Box gutters are typically installed along the exterior edge of the roof, between adjoining roof sections, or behind parapet wallsComponent - A parapet wall is the portion of an exterior wall that extends above the roofline at the perimeter of some buildings. More, where large volumes of water need to be collected and redirected. Unlike standard gutters that hang from the roof edge, box gutters are often integrated into the structure itself and designed to carry more water over longer runs.
On low-slope roofsRoof Types - Low-slope roofs (flat roofs) are a type of roof system with less than a 3:12 pitch, most commonly found on commercial and industrial buildings. More, box gutters are one of several ways to manage drainage. They are often used where an external, accessible drainage path is preferred or where the building design directs water toward the roof edge rather than along the interior.
Because box gutters are accessible, they accumulate debris over time. If accumulated debris restricts water flow, it can back up and cause leaks along the roof edge.