Short Answer
vyzn imports IFC files schema-agnostically – you simply upload your file without selecting an IFC version. In practice, IFC4 models are used. For best results, export with IFC Base Quantities enabled and all Property Sets included.
Why It Matters
To ensure vyzn can read building components, rooms/zones and metrics as completely as possible from your model, you should choose the right settings when exporting IFC from your authoring software. This ensures that downstream analyses (LCA, areas, costs, energy) are based on reliable data.
How It Works in vyzn
IFC Import
You upload your .ifc file via "Upload Model". There is intentionally no version selection and no schema restriction – the model is read generically. In practice, vyzn works with IFC4 models; all reference and test models use the IFC4 schema.
For IFC2x3, there is no separately verified reference model. However, since the import has no version-specific logic, there is technically nothing preventing you from uploading an IFC2x3 model. If IFC2x3 is relevant for you, processing can be verified with your specific dataset.
Recommended Export Settings
There is currently no official compatibility checklist per authoring software (e.g. Revit, Allplan, ArchiCAD). As general best practice, it is recommended to:
- Enable IFC Base Quantities
- Export all properties/Property Sets
- Use a quantity-oriented or transfer-oriented view definition
This ensures building components, rooms/zones and metrics arrive as completely as possible. The specific labels differ between authoring software, but the principle remains the same.
Deep Model Processing
Your model does not need to be perfect at upload. vyzn performs server-side "Deep Model Processing" where model data is corrected and enriched using AI and converted into the vyzn Reference Model™. This creates the reliable foundation for downstream analyses (LCA per KBOB, areas per SIA 416, costs per eBKP-H).
Practical Example
The quickest way to get results is to share your authoring software and a sample model with the vyzn team. They will then verify the optimal export settings and specific version support directly with your data.
Frequently Asked Questions
Does IFC2x3 work? – The import does not exclude IFC2x3, but processing is verified for IFC4. It is best to test with your specific model. Do I need special export plugins? – No, the standard IFC export function of your authoring software is sufficient. Make sure to enable Base Quantities and Property Sets. What happens if my model has errors? – Deep Model Processing corrects and enriches your model data using AI.
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