Gross volumes
SPACE-GROSS
Provides a consistent basis for massing studies, area and volume evaluations, and urban design decisions.
Description
- Gross room volumes per storey modelled as continuous volumes to the outer edge of the facade.
- The standard requires gross volume to extend to the outer edge of the insulation layer, not the outer edge of a ventilated facade; as urban alignment lines and setback areas are often decisive, we recommend deviating from the standard.
- Programme shares such as flats, units, or public space are carried in LongName according to the brief.
Modelling guidelines
- Model as a volume with the space tool, storey by storey; horizontally to the outer edge of the facade; PredefinedType =
GFA, in IFC2x3 ObjectType =Gross volume. - Basement from underside of base slab to top of finished floor.
- Upper storeys from top of finished floor to top of next finished floor or roof.
- Optionally separate by flats, units, or public space; no overlaps or duplicates.
Attributes
| Name | Description | Unit |
|---|---|---|
| Name |
Optional unit designation or number according to the project. |
|
| PredefinedType |
Marks the space as the gross floor area for a storey. Allowed values
|
|
| ObjectType |
Gross-volume identifier in IFC2x3. Allowed values
|
|
| LongName |
Unit or use designation according to the brief (for example apartment, unit, common area). |
|
|
GrossFloorArea
Qto_SpaceBaseQuantities |
Gross floor area of the modelled gross volume. |
m² |
|
GrossVolume
Qto_SpaceBaseQuantities |
Gross volume of the modelled gross room volume. |
m³ |
|
Height
Qto_SpaceBaseQuantities |
Height of the modelled gross volume. |
m |