Roof Area Inflows can be applied to the system using the Roof Inflow type.
Area
An area can be entered directly or calculated automatically from the polygon drawn on the Plan.
Proportion Drained
Used to factor the amount of the area that is actually roof and therefore enters the system.
Area Drained
An actual area to be drained based on the Proportion drained can be entered directly or calculated automatically from the polygon drawn on the Plan.
Area Drained = Area * Percentage Drained.
Runoff Method
The preferred runoff methods can be selected - select from the methods below for details and required input parameters.
Green Roof
Time of Concentration
Time Area Diagram
Section Pages
Workflow - What's next...?
Inflows connect to either Junctions or Stormwater controls via Inlets . Specify an Roof on these objects then choose to connect to another Junction or Stormwater Control.
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