Autodesk / Autodesk/revit-ifc

PR: Export AboveGround parameter not working correctly

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#862 2 comments 0 reactions 0 assignees View on GitHub
problem
Dominant language
C#
Stars
637
Forks
225
PR merge metrics
No merged PRs in 30d

Description

### Problem Description

Exporting the AboveGround parameter for Levels results in "UNKNOWN" as value in IFC4.3:

![Image](https://github.com/user-attachments/assets/05da270d-be48-44bc-adaa-ac2b30b05ee9)

### Revit Version

2025.4.x

### IFC for Revit Addon Version

25.4.0

### Windows Version

11 24H2

Contributor guide

Open the contributing guide

Research direction

Start by reproducing the IFC4.3 export with Revit 2025.4.x, IFC for Revit 25.4.0, and Windows 11 24H2, focusing on Levels and the AboveGround parameter. Trace the export path that produces UNKNOWN and confirm that completed work exports the parameter's actual value.

Written by the indexing model from the issue text.

Assessment

Tech stack
csharp
Domain
desktop
Issue type
Bug
Difficulty
3/5
Estimated time
1-2 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
35/100

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