Building cover
Use the Building cover tool to create an overall load-transfer envelope for an entire structure or storey, shaped as a flat, lean-to, or ridge roof volume.
When you select Building cover, a tool palette opens.
Main tools
- Define - generate a new building cover with the current sub-type and settings
- Properties - review or modify the parameters of existing covers. Opens the Default settings dialogue for the selected elements
- Explode - break a Building cover into individual Cover planes that you can edit separately
- Default settings - set the default parameters for new building covers (read below in more detail)
Define
Choose one of three roof sub-types, then fill-in the height parameters and options.
- Flat roof - horizontal cover with optional parapet
- Lean-to - single-slope roof slanting in one direction
- Ridge roof - double-slope roof meeting at a ridge line
Common settings
- h′ - secondary height parameter depending on the selected cover sub-type:
- parapet height for Flat roof type
- lean-to height (vertical distance from low eaves to ridge) for Lean-to type
- ridge height above eaves for Ridge roof type
- h - main wall height
- Auto supports - automatically detect beams, walls and columns that receive load reactions
- Consider only visible objects - limit auto-detection to objects on visible layers
Default settings
When you press the Default settings button, a compact dialogue opens.
- Identifier - label shown in schedules, lists and tooltips
- h′ - parapet / lean-to / ridge height (depending on chosen sub-type)
- h - wall height of the building cover