The fastest most complete digital instrument for thermal analysis of building components.

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TRISCO Features


  • steady-state thermal simulation of 2D & 3D orthogonal building components
  • High work-efficiency due to efficient geometric modelling functions
  • Minimal simulation time due to optimized finite element solver
  • Optimised for automated use according to EN ISO 6946 and EN ISO 10211
  • Superior graphic representation of isotherms and isofluxes
  • Software operational in English, French, German and Dutch
TRISCO Application fields

Application fields

  • Thermal bridge analysis: heat loss calculation, surface condensation (EN ISO 10211)
  • Thermal transmittances of building components and elements (EN ISO 6946)
  • Thermal performance of windows, doors and shutters (EN ISO 10077-2)
  • Heat transfer via the ground (ISO 13370)
  • Heat transfer in masonry and masonry products (EN ISO 1745)



TRISCO Input and geometric modelling

Input and geometric modelling

  • Object modelled with rectangular blocks
  • By superposition in space a minimum number of blocks is required
  • Object parts can be copied, transformed, repeated
  • Input possible of 2D AutoCAD drawing via DXF file
  • Importing of separate TRISCO models for specific components possible
  • Compatible model input from SOLIDO and BISCO


TRISCO Thermal properties and boundary conditions

Thermal properties and boundary conditions

  • Material properties (thermal conductivity, surface emissivity) are linked to colours
  • Automatic calculation of equivalent thermal conductivity for air cavities modelled as materials
  • Surface boundary conditions (to environment or between materials)
  • Volume boundary conditions (material with fixed temperature or heat power density)
  • Point boundary conditions (fixed temperature or power)



RADCON feature for TRISCO

  • Detailed simulation of radiation based on view factors
  • Extreme fast and stable calculation of non-linear radiation problems
  • Convection based on (calculated) convective heat transfer coefficient
  • Transparent materials for small cavities: conduction + radiation
  • Validated according to EN ISO 10077-2:2017 (radiosity method)


TRISCO Meshing and calculation solver

Meshing and calculation solver

  • Rectangular grid of system nodes through object block surfaces
  • Grid refinement functions
  • Extremely fast and stable solution through iteration
  • Unlimited number of nodes proportional to installed memory
  • Non-linear problems solved through iteration cycles




  • Superior graphic representation of isotherms and isofluxes
  • Text output of temperatures and heat flows
  • Investigation of surface condensation
  • Calculation of thermal transmittances and thermal bridge properties


TRISCO Interaction with Physibel products

Interaction with Physibel products

  • 2D variant: Trisco2D
  • Import of 2D bitmap and BISCO data
  • Dynamic version: VOLTRA
  • Non-rectangular forms: SOLIDO
  • TRISCO models can be loaded into SOLIDO and vice versa


TRISCO Licence options

Licence options

  • TRISCO is available with perpetual licences or with subscription licences.
  • Subscription licences are protected with a software licence locked to a computer (stand-alone, network or cloud-based floating). With a subscription licence you get access to the latest version of TRISCO, technical support and Physibel Knowledge Base.
  • Perpetual licences are protected with a stand-alone licence locked to a hardware key. With a perpetual licence you get 1-year AMP (Annual Maintenance Plan). Renewal of AMP is not mandatory but continues your access to major version updates of TRISCO, technical support and Physibel Knowledge Base.  

what's new in version 15?

  • Additional thermal palette ("Ironbow") available for graphic comparison with IR-image.
  • Revised Colour window to allow conformity with different EN standards. Implementation of the equivalent thermal conductivities for air voids and layers according to EN ISO 6946.
  • Improved algorithms for importing DXF files (TriscoDXF and Trisco2D integrated tools).
  • Click here for presentation with a complete overview of all new developments.
Version history


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