HVAC Duct Surface Area Analysis
Parametric-dimension check for duct channel surface area and rounding eligibility
Duct segments found
1
Single segment in model
Valid dimensions
0
No usable parametric dimensions
Missing dimensions
1
Rounded total surface area
N/A
Cannot apply under-1 m² rounding rule
Why the surface area cannot be computed
The IFC model contains only one duct segment, and it is represented by tessellated geometry rather than a parametric duct profile. Because the segment is defined as an IfcTriangulatedFaceSet instead of an IfcExtrudedAreaSolid or dimension-bearing property set, there is no explicit length or cross-section size to use for channel area calculations.
With zero segments carrying valid dimensions, the dashboard cannot derive total duct surface area and cannot apply the rule that rounds values below 1 m² up to 1 m².
Impact on reporting
- Total area: no numeric surface area can be reported.
- Rounding rule: the under-1 m² uplift cannot be evaluated.
- Coverage gap: 100% of detected duct segments are blocked by missing dimensions.
Missing-data detail comes from the supplied CSV analysis output.
Dimension availability across detected duct segments
Calculation pipeline impact
Summary breakdown
| Status | Count | Share | Area calculation |
|---|
Missing segment detail
| ID | Name | Reason |
|---|