Eaves are Horizontal Shade Objects that are Connected to Walls so that their Shading Impacts (i.e. reduced Solar Gains) can be Simulated

Eaves are modelled as Line like objects within Hero and must be Manually Connected by the User to each Wall that the User determines they may shade.

Eaves & Openings

Note all Openings (Windows & Doors) on a Wall will also have the Eaves of their Parent Walls applied to them during Simulation



Eaves are created using the Eave Drawing mode (Screen & Eave Drawing Modes)

Attaching / Connecting to Walls

Eaves currently must be Manually Connected to Walls by the User for their Shading Impacts to be Simulated.

There are a variety of ways to Attach an Eave to a Wall which are detailed further in the Attach Drawing Mode section of Screen & Eave Drawing Modes

Connection Lines

When an Eave & Wall are Connected, a Connection Line is shown between them on the Visual View, and the Wall is added as a row within the Eave Data-Grid.

The Connection Line is only Visible within the Visual View when the Wall or Eave is Selected or 🖱️ Hovered.


Selecting Eaves

You can Select an Eave within the Visual View & Eave Data-Grid by 🖱 Left-Click.

Selecting Connections

A Connection Line can be Selected within the Visual View once is Visible (see above) by  🖱 Left-Click

The Connected Wall Row of an Eave within the Eave Data-Grid is also analogous to selecting the Connection within the Visual View


Deleting Eaves

The Eave itself can be deleted by:

  • selecting the Eave within the Visual-View or Data-Grid and pressing ⌨ Delete; or

  • by using the 🖱 Right-Click Context-menu Delete action within the Visual View;

Deleting Connections (Disconnecting Eaves & Walls)

A Eave can be Disconnected (i.e. it’s Connection is Deleted) from a Wall through several means including:

  • Selecting the Connection Line between the Eave& Wall (shown in the Visual View when a Wall or Eave is 🖱 [Hovered]or selected & pressing the ⌨ Delete

  • Selecting the Connected Wall Row within the Eave Data-Grid & pressing ⌨ Delete


Eaves can be moved in the Visual View by selecting them and then 🖱 [Dragging] them into their position, and likewise their Start & End Points can be moved in a similar fashion.

You can move an Eave or Eave Point in a straight Vertical or Horizontal direction by holding ⌨ Shift.

Parallel View of the Eave

Eaves are modelled within the Chenath Simulation as a Horizontal Shade object Parallel to the Connected Wall. The Projection Distance of the Eave from the Wall is based on the Parallel Distance between the Centre of the Wall & the Centre of the Eave.

Therefore Eaves that have an angle different to any Connected Walls may not be Simulated as they look Visually, but rather to their Parallel View. This Parallel View is shown as a thin line when a Connected Wall is selected in the Visual View (see image below).




Edited Within


The Name of the Eave

Name Column

Connected Wall

The Name of each Wall connected to the Eave

Connected Wall Column


The parallel horizontal distance between the Wall (centre of outside face) & the Parallel View line of the Eave in mm (see Parallel View section above).

Projection Column

Eave Height

The Height of the Eave relative to Level Height (in mm)

Eave Height Column

Wall (Top) Height

The Top Height of the Connected Wall relative to Level Height (in mm)

Wall Height Column

Vertical Offset Height

The distance between the Height of the Eave & Top Height of the Wall (in mm)

Negative if Eave is below Top of Wall

Vertical Offset Column

Summer Opacity

The shading percentage of the Eave (in %) during the Summer Months

Spring/Autumn months have the average of Summer & Winter Opacity for Simulation

Summer Opacity Column

Winter Opacity

The shading percentage of the Eave (in %) during the Winter Months

Spring/Autumn months have the average of Summer & Winter Opacity for Simulation

Winter Opacity Column


The Length from start to end of the Eave (in mm)

Length Column (hidden by Default)

Left & Right Horizontal Offset

The distances between the Left & Right Edges of the Connected Wall & the Closest of Edge of the Eave (in mm)

Horizontal Offset Column (hidden by Default)


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