# Guttering system : Downpipes

Downpipes are used to drain water from the gutters. The system calculates the number and length of downpipes based on the height of the façade. If several downpipes of different lengths (1m,2m,3m) are included. The system will select the most optimal pipe length configuration. When defining downpipes, the basic parameter is Length - this specifies the length of the downpipe in mm.

The location of the downpipes is determined by the stiles used. Therefore, in order for the downpipes to be counted, a stile type element must be added to the set. Gutter system : Stucco