Downspouts are pipes that connect with a home's gutter system and carry rain water and snowmelt from the roof to the ground or storm service, providing proper rain water and snowmelt drainage and diversion. A functional downspout protects the home's roof, siding and foundation from water damage and helps prevent flooding of the home's basement.

The downspout must have an elbow and an extension or a concrete splash pad to convey surface drainage past the foundation excavation zone. The downspout elbow should be directed away from the foundation walls and towards the drainage swales.

Downspouts, splash pads, and sump hoses must discharge within the property:

  • 15 cm from an adjacent private property
  • 30 cm from an adjacent City property

The following pictures illustrate downspouts in different conditions (for reference only):