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The complete dynamic building simulation package

Tas Engineering has a modular design, with dedicated programs serving a specific purpose, facilitating a methodical workflow.
3D Modeller
For creating building models for simulation & performing daylight analysis.

DWG Import

Create geometry by tracing around floor plans.

Daylight Calculations

Create geometry by tracing around floor plans.

gbXML Import

Intelligent gbXML import can repair common problems with geometry enabling a BIM workflow

Rendered Views

Photorealistic 3D rendered views can be generated using the daylight engine.
Building Simulator
For adding apertures, internal gains, constructions and performing a dynamic simulation


Fast, accurate hourly dynamic simulation.

Reusable Databases

Re-use construction, internal gain and calendar data for an efficient workflow.

3D Visualisation

Quickly identify zones and where constructions, apertures and building elements are assigned.


Collection of utilities and wizards make performing common tasks quick and easy.
Results Viewer
For storing, viewing and exporting 2D and 3D hourly results

Tabular Export

Export hourly data for zones, building and surfaces to excel for detailed analysis.

Generate Reports

Use results viewer files as the input to our report viewer.

3D Export

Export pictures and videos with intelligent colouring and labels that reflect various metrics.

Clear Charts

Fully customisable charts make it easy to present complex data clearly and identify trends​.
Powerful HVAC modeller for calculating actual energy consumption based on the demands predicted by the Building Simulator.

Component Based Plant Modeller

Add, delete, or edit individual components in the system. Create custom systems and save them for future use.​

Editable Control Logic

Control component operation based on a wide range of parameters to accurately imitate real-life system behaviour.

Systems Wizard

Pre-built airside and waterside systems are available through the Systems Wizard, including 90.1 baseline systems.​

Detailed Results and Report Generation

Interrogate the results in detail with graphs, tables, and psychrometric charts. Automatically generated reports give system setup details and sizing data.
Tas Engineering comes with a multitude of utilities that link together the various core aspects of the software to perform specific tasks.
3D Modeller
Daylight Analysis Wizard:
  • Equivalent First Zone
  • Daylight Factors
  • Vertical Sky Component
  • Permanent Overshadowing
  • Daylight Distribution
Building Simulator
Percentage Mean Vote & Percentage People Dissatisfied Tool:
  • Thermal comfort for free running buildings
IDF Wizard:
DOE Importer:
Cymap Systems tool:
BCA J2 Glazing:
ASHRAE 90.1 Studio:
  • Collate and manage Tas files for 90.1 projects
  • Generate Baseline building geometry and lighting
UK Building Regulations 2010 Studio:
UK Building Regulations 2013 Studio:
Tas Generic Optimisation:


For more information or inquiry please contact, sales@cradle.co.th, (+66) 063-650-2456
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