Previous versions

Version 12

(Scroll down for presentation on new functionalities)

BISCO v12.0.05

  • Increased calculation speed due to improved neighbouring nodes algorithm for viewfactor zones (RADCON)
  • DXF extension adjusted to actual information in DXF file (minus ignored layers) in BiscoDXF
  • Bugfixes:
    • Automatically switch Tmin and Tmax in Temperature Range dialog box if Tmin > Tmax

BISCO v12.0.04

  • Bugfixes:
    • DXF with mirrorred drawing extents (Xmax < Xmin) correctly read when imported directly in BISCO
    • Error message shown when meshing fails because triangle pixel size is too large

BISCO v12.0.03

  • Bugfixes:
    • BC_SIMPL HI_CAV_E and HI_CAV_I not split in EN 10077 preparation
    • Opening DXF files in BiscoDXF from BISCO
    • Saving BMP files in BiscoBMP when closing windows
    • Application settings cannot change after opening DXF file or colour database
  • Cloud-based licences automatically activated when opening application

BISCO v12.0.02

  • Bugfix: insulation panel length in automatic preparation EN10077 when grooves at the surface are detected
  • Small bugfixes in converting colours from BISCO v11 files
  • Off line activation of software licence keys added
  • Cloud-based licences have the option to release the licence or not

BISCO v12.0.01

  • Various trivial bugfixes (not related to functionality)
  • Network floating licence viewer
  • Major versions can coexist on computer
  • Additional How To's

BISCO v12.0

  • Graphic output of surface condensation and high relative humidity zones.
  • Visualisation of radiative heat fluxes in cavities and at surfaces with RADCON.
  • New feature to label output images with: colour name, thermal properties, X/Y dimensions, node temperature, min/max temperature, temperature factor, internal surface condensation, internal surface humidity, heat flow through polyline.
  • Revised legend with indication of material names and clustered cavities per EN ISO standard. The colour for each cluster of cavities can be defined by the user.
  • New parameter for automatic selection of boundary condition temperatures.
  • Triangulation mesh only visible when image has relevant scale.
  • Faster image processing algorithm for complex files.
  • Revised Colour window to allow conformity with different EN standard. A new column ‘Standard’ is replacing the former columns ‘C1’, ‘C2’ and ‘C3’.
  • Introduction of Colour database allowing to quickly adjust frequently used materials and boundary conditions (File → Open Colour Database…).
  • New function to cluster type EQUIMAT with a user defined cluster resolution for thermal conductivity.
  • Implementation of the equivalent thermal conductivities for screws according to ANNEX E of EN ISO 12631.
  • Implementation of the equivalent thermal conductivities for air voids and layers according to EN ISO 6946.
  • EN ISO 10077-2
    • Automatic detection and handling of surface grooves < 2mm;
    • Conversion of TRANSMAT to EQUIMAT (Colours → Convert TRANSMAT To EQUIMAT).
  • Option to save Text Output in CSV format for post processing (e.g. MS Excel).
  • Automated ‘Make report’ function copies and opens the report template in the current folder.
  • Option to add 2 distances for calculation of derived thermal properties
  • BiscoDXF:
    • Accessible from BISCO (File → Open DXF…).
    • Improved algorithms to avoid mirrored extrusion directions.
    • Error warning for open line ends and duplicates.
    • Option for layer selection when loading DXF files.
  • Bitmap editing:
    • Drawing tool BiscoBmp accessible from BISCO (Bitmap → Editing using BiscoBmp…).
    • Snap to pixel when in ‘selecting’ or ‘drawing’ mode.
    • New drawing functions: rectangles and lines.
    • Cursor colour adjusted for background colour.
    • Pan: drag mode changed to ‘drag object’.
    • Function ‘Clean Colour…’ to delete pixel noise.
  • Feature 'Unlimited nodes' replaces old 64-bit version.
  • Documentation accessible from the BISCO menu ‘Help’: Manual, How to’s and Tutorials.
  • More documentation (example projects, validation projects and training material) available via the online Physibel Portal (
  • Extended software protection options:
    • Hardware licence key (USB): stand-alone
    • Software licence key: stand-alone, network floating and cloud-based floating.

Version 11.0w

  • Direct input of a DXF file in BISCO (without preparation in BiscoDxf).
    The bitmap is automatically created using the (default) layer definitions.
  • A layer name in a DXF file starting with a number of 3 digits (000 up to 255) sets this number as colour number of the layer (also in BiscoDxf).
    A layer name of format “xxx_y_name” sets the colour number (3 digits xxx) and fill type (digit y, from 0 up to 3).
  • New parameter “Use border colours” in function Bitmap > Size…
  • Improved detection of grooves and interconnections in function Bitmap > Split Zones…
  • Faster triangulation of bitmap (as initial step of thermal system calculation), because of elimination of graphic feedback.
  • The radiation simulation in a TRANSMAT cavity at the bitmap border is improved.
  • Graphic output of single isothermal line.
  • Batch calculation starting from DXF files with included EN 10077 preparation.
  • Creation of graphic report files also possible in batch calculation (from either BSC or DXF files).
  • Show left top point coordinates of current colour from Measures window in status bar (to facilitate its location in the bitmap).
  • New tool BiscoBmp to edit and prepare BMP files (containing move/copy of selection within bitmap).
  • Multiple BISCO simulation results can be imported in one step in the Word report template.
  • Word report template with improved style control of imported report items.
Presentation BISCO v11

Version 10.0w

  • Automatic preparation of the bitmap to minimise the user intervention for the calculation of the thermal transmittance of a window frame according to EN ISO 10077.
  • New rules for type EQUIMAT (rules CEN_DIR_I and CEN_DIR_E), TRANSMAT (rule CEN_DIR_I) and BC_FREE (rule CEN_DIR_I) to calculate the thermal conductivity and convective heat transfer coefficient from the real heat flow direction.
    These extensions are in line with the standard EN ISO 10077-2:2017.
    The RADCON module needs to be installed to use these new rules.
  • Distances and U values can be defined in a slanted direction (using Distances window).
    The Derived Thermal Properties dialog box is adapted to include possible references to those (slanted) distances and U values.
  • Current split zone parameters can be set as default parameters (saved in the BISCO parameter file).
  • Batch calculation and command line program execution with automatic report text and report index files generation.
  • 64-bit option:
    With the 64-bit option the 2 Gbyte RAM limit of the standard 32-bit BISCO version can be exceeded.
    Bitmaps of up to 32767 x 32767 pixels are possible.
    The maximum number of nodes depends on the RAM installed.
Presentation BISCO v10

Version 9.0w

  • BiscoDxf: conversion of DXF file to BMP file
    • Bitmap size, placement and resolution can be modified at any timE
    • Load layer definition file of other data
  • Read/write compressed 256-colours BMP files
  • Faster response times when using drawing tools
  • New bitmap editing functions:
    • Crop bitmap borders to remove border margin around drawing
    • Import BMP file into current bitmap
    • Delete colour preserves adjacent hard materials and expands adjacent soft materials (based on thermal conductivity)
  • View/impose U values at bitmap borders
  • Calculation of equivalent thermal conductivities of air cavities:
    • Optimisation of air cavities by detecting grooves and interconnections (smaller than 2 mm or 10 mm)
    • Editable surface emissivities
    • Automatic adjustment of heat flow direction
    • Use solution temperatures or default temperatures
    • Cavity at bitmap border mirrored or not (i.e. bitmap border is axis of symmetry or not)
  • Thermal transmittance of window frame:
    • Frame with two glazings (i.e. two insulation panels)
    • Detect zones of reduced heat transfer (at internal boundary condition)
    • Initialisation of distances (based on window frame colour number)
    • Adjustment of distances with resize of bitmap or pixel
  • Additional BISCO data template with more colour numbers for air cavities
  • Text output: relative humidity for surface condensation
  • Report generation:
    • Free definition of graphic report files (PNG or BMP)
    • Function "Make Report" generates text files and graphic files
    • MS Word template document with macro to import report files at bookmark locations
Presentation BISCO v9

Version 8.0w

  • More bitmap functions:
    • Insert/delete pixel band (e.g. to modify the width of a material layer)
    • Resize pixel without modifying the bitmap size (e.g. to get a rounded pixel size)
    • Delete colour in bitmap (e.g. to clean up the bitmap)
    • Merge colours (to reduce the number of colours having the same thermal properties)
    • Zoom in/out via mouse wheel
  • More graphic output functions:
    • Automatic labelling of colour numbers in bitmap
    • Fill heat fluxes (to show the magnitudes of the local heat flow vectors)
  • BiscoDxf: tool for fast conversion of DXF drawing (R14) to BISCO bitmap
    • Benefits: free definition of pixel size and bitmap size
    • Interesting for productive input of large amounts of well prepared DXF drawings
    • BiscoDxf only supports a limited set of DXF commands (e.g. 2D polyline)
    • No support is given (only resources are BiscoDxf manual and R14 DXF Reference)
Presentation BISCO v8