# Guttering system : Guttering

A gutter stucco is a component of the roof drainage system that connects the gutter to the downpipe. It ensures the free flow of rainwater from the gutter to the downpipe, preventing it from backing up and potentially causing damage. The stucco is installed in the gutter where the downpipe is to be connected, and is shaped to match the cross-section of the gutter and the diameter of the downpipe.

In the parameters, specify:

• System size - specifies the size of the system (informative)
• Maximum length of gutters from which the downpipe is to collect water (in metres) - Note the parameter in metres, not mm. With this parameter, you can specify the maximum length of the gutter from which the water is to be collected to the stinger. On this basis, the number of stiles and thus of downpipes is calculated.