Sector
Construction
Scope
HVAC MEPF BIM Modeling
HVAC Ducts
Ceiling Vents
Supply/Return Classification
Electrical HVAC Elements
Location
USA
Deliverables
HVAC - LOD 350 BIM Model
3D DWG Files
Accuracy Report
About The Project
The Bank Headquarters building project in USA required a precise as-built BIM model for the HVAC systems to ensure alignment with original design plans. Commissioned by a US-based surveying company, the project focused on verifying the HVAC infrastructure and providing essential documentation for facility management. Spanning 280K SF (26K square meters), the project involved full architectural BIM modeling of HVAC ducts, ceiling vents, supply/return classifications, and all electrical HVAC components. Deliverables included a LOD 350 as-built BIM model, 3D DWG files, and an accuracy report to support future maintenance and operations. This project ensured optimal performance by delivering an accurate BIM model of the heating, ventilation, and air conditioning systems.
Our work was completed in two phases:
1. Modeling the as-built conditions from scratch – we developed a LOD 350 as-built BIM model that reflected the architectural layout and all HVAC components.
2. HVAC system comparison – As-Built vs. Design
- the completed model was compared to the original design.
Each HVAC element was classified based on accuracy and alignment according to the described worksets in the legend. This classification provided clear insights into discrepancies, enabling early detection and correction of deviations. The accurate as-built BIM model ensures efficient facility management and long-term operational reliability for the bank branch building.
Project Challenges & Deliverables
The HVAC modeling phase for the bank building presented several challenges that required the expertise of our engineering and modeling teams to ensure a precise and continuous system. A key challenge was the concealment of vertical HVAC ducts within walls across much of the building, limiting visibility in the scans. Our engineers and modelers used visible data points and extensive MEPF experience to reconstruct the duct paths and create a fully connected vertical supply and return system.
The reflective above-drop-ceiling scans caused by existing metal systems distorted the LIDAR data. Our team applied advanced filtering and cleaned the scans to produce a clear, coherent data set for accurate modeling. Non-continuous systems caused by restricted access led to inconsistencies in the HVAC layout. Our engineering and modeling teams carefully analyzed the system, filled in missing sections, and ensured a fully connected, operational model. By addressing these challenges, our team delivered an accurate and reliable as-built HVAC BIM model, supporting efficient facility management and long-term maintenance.
The HVAC modeling phase for the bank building presented several challenges that required the expertise of our engineering and modeling teams to ensure a precise and continuous system. A key challenge was the concealment of vertical HVAC ducts within walls across much of the building, limiting visibility in the scans. Our engineers and modelers used visible data points and extensive MEPF experience to reconstruct the duct paths and create a fully connected vertical supply and return system.
The reflective above-drop-ceiling scans caused by existing metal systems distorted the LIDAR data. Our team applied advanced filtering and cleaned the scans to produce a clear, coherent data set for accurate modeling. Non-continuous systems caused by restricted access led to inconsistencies in the HVAC layout. Our engineering and modeling teams carefully analyzed the system, filled in missing sections, and ensured a fully connected, operational model. By addressing these challenges, our team delivered an accurate and reliable as-built HVAC BIM model, supporting efficient facility management and long-term maintenance.
