The greatest BIM challenge in Thai construction projects is not software adoption — it is sharing data between different software packages. Architects may use ArchiCAD, structural engineers Tekla or Revit, MEP engineers MagiCAD, and project owners Excel. OpenBIM and IFC resolve this data silo problem.
IFC: The BIM Common Language (ISO 16739)
IFC (Industry Foundation Classes) is an Open Standard format governed by buildingSMART International. It represents all building information in 3D — from geometry to material properties, manufacturer data, schedules, and costs.
IFC4.3 (current) supports: IfcWall, IfcBeam, IfcSlab (structural); IfcDoor, IfcWindow, IfcSpace (architectural); IfcDistributionSystem (MEP); IfcTask (4D scheduling); IfcCostItem (5D cost estimating).
Major software with IFC export: Autodesk Revit (IFC4/IFC2x3), ArchiCAD (IFC4), Tekla Structures (IFC4), SketchUp (via IFC plugin), Rhino+Grasshopper (via GeometryGym plugin).
COBie: Handover Data for Facility Management
COBie (Construction Operations Building Information Exchange) is an IFC subset focused on the data Facility Managers need post-handover: manufacturer, model, serial number for every installed asset; installation dates; warranty periods; maintenance schedules.
Bangkok commercial buildings and international hotels are increasingly including COBie delivery as a contract requirement, allowing property managers to carry BIM data directly into CAFM (Computer-Aided Facility Management) software.
OpenBIM Workflow for Thai Residential Projects
Recommended workflow: Architect (ArchiCAD) designs the Architectural Model → exports IFC4 → Structural Engineer imports IFC into Revit Structure/Tekla → designs Structural Model → exports IFC → MEP Engineer imports both Architectural and Structural IFC into MagiCAD → designs MEP → Federated IFC model enters Navisworks/Solibri for Clash Detection.
Result: every team works on their preferred platform using IFC as the exchange format — no software lock-in for any discipline.
IFC Validation: Quality-Checking IFC Files
Solibri Model Checker is the industry standard for IFC validation — checking geometry validity, property completeness, IDS (Information Delivery Specification) compliance, and interdisciplinary clash detection.
Free tools to know: Blender BIM Add-on (open-source, full IFC4 import/export), IfcOpenShell (Python library for programmatic IFC reading and writing).
Thai Regulatory Context and BIM Mandate
Thailand’s Department of Public Works (DPT) is developing BIM standards for government buildings, with an emerging trend toward mandating IFC as the submission format for large public projects. Building OpenBIM competency now positions firms ahead of anticipated regulatory requirements.