Warning · Data quality
How to fix Missing material
in IFC files
Assign a material to the element so it carries material data (expected from LOD 200/300 onward).
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No account · No upload · Runs in your browser · 38 validation checks
What it means
The Missing material check
Physical element has no IfcRelAssociatesMaterial
The fix
How to fix Missing material in your authoring tool
Concrete, tool-specific steps. The check itself is schema-agnostic and works for IFC2x3, IFC4, IFC4x1 and IFC4x3.
| Authoring tool | How to fix |
|---|---|
| Revit | Assign a material to the element’s structure (Edit Type ▸ Structure, or the Material parameter). Revit exports defined materials as IfcMaterial / layer sets. |
| ArchiCAD | Assign a Building Material (not just a surface) to the element; ARCHICAD exports Building Materials as IfcMaterial. |
| Tekla | Set the part material in the part properties; Tekla exports it as the associated IFC material. |
| Allplan | Assign a material/format attribute to the element so it exports with a material association. |
How it works
Find and fix it in the browser
The whole flow runs client-side — your IFC file never leaves your machine.
01
Open your IFC file
Open IFC Viewer Online and drag & drop your IFC file. It is parsed locally in your browser via WebAssembly — nothing is uploaded.
02
Run the Health Score validation
Run validation. The "Missing material" check (RULE_MISSING_MATERIAL) flags every affected element and pinpoints it in the model tree.
03
Fix in Revit
Assign a material to the element’s structure (Edit Type ▸ Structure, or the Material parameter). Revit exports defined materials as IfcMaterial /…
04
Fix in ArchiCAD
Assign a Building Material (not just a surface) to the element; ARCHICAD exports Building Materials as IfcMaterial.
05
Fix in Tekla
Set the part material in the part properties; Tekla exports it as the associated IFC material.
06
Fix in Allplan
Assign a material/format attribute to the element so it exports with a material association.
07
Re-validate
Re-export from your authoring tool and re-run validation to confirm the issue is resolved and your Health Score improved.
Related checks
Other Data quality checks →
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