Creating Roof Styles

To create a roof style:

1. When creating either a roof face or roof object, select Roof Preferences from the Style list.

The Roof Preferences dialog box opens.

Click to show/hide the parameters.

Parameter	Description
Roof Style	To modify an existing roof style, select the Roof Style from a library or the current file. Alternatively, select Unstyled as the roof style and set the parameters.
Save Preferences as Roof Style	Saves the current preference settings as a new roof style. The Assign Name dialog box opens; enter a roof style name and click OK.
Preview	Displays a sectioned preview of the roof structure, including any defined components. The top of the preview indicates the top part of the roof as it will be drawn.
Overall Thickness	Displays the thickness of the roof. The roof thickness is always determined by the thickness of its components; a roof always has one component by default.
Edit Roof Attributes	Opens the Roof Attributes dialog box, to specify the roof fill, pen, and opacity settings
Components	Lists the components that form the structure of the roof, in order from top to bottom as displayed in the preview. To change the order of a component, click and drag within the # column.
Datum	A datum is the reference point for elevation settings (it does not change with any changes to the roof thickness or definition). One of the roof components is designated as the datum component by clicking in the Datum column. An indicator in the column either points towards the top or bottom, to show that the datum is placed on the top or the bottom of the component. To change the datum to be at the top or bottom, either click on the indicator to switch the placement, or click Top of Component or Bottom of Component under Datum at the bottom of the dialog box.
Other Component settings	The remaining columns in the component list display the component thickness, edge offset method, class setting, and energy parameters, which are set in the Roof Component Settings dialog box
New	Opens the Roof Component Settings dialog box to define the components of the roof; see Creating Roof Components for information on creating components
Edit	Opens the Roof Component Settings dialog box to edit the selected component’s thickness and attributes (alternatively, double-click a component to open the Roof Component Settings dialog box)
Duplicate	Duplicates the selected roof component; the duplicate is added to the component list right below the originally selected component
Delete	Deletes the selected roof component; the roof thickness is adjusted accordingly
Datum	Select whether the datum is applied to the top or bottom of the designated component; the indicator in the Datum column updates accordingly
IFC	Assigns or edits IFC data; see Viewing and Editing IFC Data

2. Click Edit Roof Attributes to define the roof attributes in Top/Plan view.

The Roof Attributes dialog box opens. The roof attributes of an unstyled roof are initially set to the parameters displayed in the Attributes palette. If they are changed here, the Attributes palette reflects the changed attributes of the selected roof (after exiting the Roof Preferences dialog box).

Fill, pen, and opacity can be set by class rather than by the attributes in the Roof Attributes dialog box. If the roof class is changed later, the roof changes to use the attributes of the new class. Roof attributes cannot be overridden on a per-instance basis; if a roof style uses class attributes, all roofs of that style must use class attributes. However, roofs of the same roof style can be placed in different classes.

Click to show/hide the parameters.

Parameter	Description
Fill
Style	Specify the roof fill attributes. Select None for no fill, or Class Style to set the roof fill attributes by class rather than by the parameters in the Roof Attributes dialog box. Selected hatch, gradient, or image fills, if not already present in the file, are imported and added to the Resource Browser.
Pen
Style	Specify the roof pen attributes. Select None for no pen, Line Type to select a complex line type, or Class Style to set pen attributes by class rather than by the parameters in the Roof Attributes dialog box.
Thickness	When a pen style has been selected, specify the line thickness. If Line Type is selected as the pen style, also select the line type to use.
Opacity
Use Class Opacity	Sets roof opacity by class rather than by the parameters in the Roof Attributes dialog box
Opacity	Specifies the transparency of the roof; drag the slider to the left to increase the transparency, or enter a percentage directly in the box to the right of the slider

3. Click OK to return to the Roof Preferences dialog box.

4. Click the Insertion Options tab to set the roof class and energy analysis parameters

Click to show/hide the parameters.

Parameter	Description
Class	Specifies the default class for the roof
Energos	Roofs can participate in Energos energy analysis calculations (see Energos Energy Analysis Module). Vectorworks Architect is required to conduct an energy analysis; however, energy-related parameters can be specified here for informational purposes.
Include in Calculations	When selected, the roof is eligible to be included in energy calculations, depending on the energy analysis settings for layer/class, element inclusion, and so on.
Object Boundary Type	Select the type of roof (exterior or foundation). The system list can be modified; see Specifying System Sets. Editing the system parameters, or adding new ones, allows the exterior and interior RS (surface resistance) values to be specified. If the selected boundary roof calculations are not satisfactory, edit the system list to be extremely specific about the roof surface resistance parameters. For a finer level of detail about the boundary roof material, click Advanced. The Advanced Settings dialog box opens. Specify advanced settings and then click OK. ●    Exterior Material: For exterior roofs, indicates the general color of the exterior material. The system list can be modified; see Specifying System Sets. The Absorptivity and Emissivity factors are automatically calculated and displayed. ●    Reduction Factor Shading: When the roof is shaded (especially during the summer), enter a shading reduction factor between 0 – 1, where 0 (zero) indicates total shade and 1 indicates no shade.
Calculated R-Value/U-Value	Based on the location of the roof within the building (boundary type) and orientation of the heat flow (surface resistance values), the wall R-Value/U-Value is calculated and displayed. This value, along with the area of the roof, is critical for a correct assessment of the building envelope in energy calculations.
Override Calculated R-Value/ U-Value	Select this option to override the calculated R-Value/U-Value and enter a manual value for the roof instead in Manual R-Value or Manual U-Value

5. Click the Textures tab to select textures for the roof parts (Renderworks required).

Click to show/hide the parameters.

Parameter	Description
Use Component Textures	Uses the textures defined for the roof components to texture the roof This option can also be selected for an existing roof from the Render tab of the Object Info palette.
Use Object Textures	Uses the textures defined below for the roof parts (see Applying a Texture to an Object for information on applying textures to an object with parts)
Part	Applies the texture selected in Texture to the selected parts of the roof
Revert to Overall	If a part was assigned a texture but it should inherit its texture from Overall instead, select the part and click Revert to Overall. The part moves back below the divider in the Part list, and (from Overall) displays as its texture name.
Texture	Applies the selected texture to the selected Part. Textures can also be set from the Render tab of the Object Info palette. Textures applied from the Object Info palette override the textures set here.
No Texture	Does not apply a texture to the selected Part
Class Texture	Sets the roof to use the texture specified by the roof’s class. The class texture is set from the Other tab in the Edit Classes dialog box. Any roofs with that roof style use class textures for that part of the roof (unless overridden). Class Texture can also be chosen for a selected roof in the Render tab of the Object Info palette.
Choose Texture	Choose a texture for the selected Part from a library or the current file. Textures set here override the object class textures.

6. Click the Data tab to specify roof record information, which is also the IFC data that can be assigned when creating an IFC entity (edits to either the Data tab or the IFC entity edit the data in both locations). This information can be included in a roof style schedule. These fields are optional; enter text only where desired.

7. Click Save Preferences as Roof Style.

The Assign Name dialog box opens.

8. Enter a unique name for the roof style and click OK.

If the roof style name already exists, you are prompted to cancel and select a different name, or replace existing roofs with the roof style applied with the edited roof style. If you are replacing roof styles, the Roof Replacement dialog box opens; specify the roof replacement properties.

9. The new roof style is saved with the file and is listed under Roof Styles in the Resource Browser as well as the Roof Style list in the Tool bar.

A new roof style can be created from an unstyled roof. Right-click (Windows) or Ctrl-click (Mac) on an unstyled roof, and select New Roof Style from Unstyled Roof from the context menu.

A new roof style can also be created from the Resource Browser by clicking New Resource > Roof Style from the Resources menu. A roof style created in this way is not associated with the current roof preference setting, but can be applied later.

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Using Roof Styles

Resource Libraries

The Attributes Palette

Applying a Texture to an Object

Setting Class Properties

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