Thermal Bridge

Mold Simulator is the solution to perform thermal and hygrometric analysis of walls, windows and ceilings. It makes easy to find a thermal bridge and areas affected by surface and interstitial condensation. Mold Simulator is available in Italian and English languages and for Windows and MacOSX.
NEW: since version 5 Bridge Generator is integrated into Mold Simulator: you’ll be able to parametrically geneate thermal bridges in few clicks starting from a large predefined library of presets.

Mold Pro – Ψ and Condensation analysis

Thermal bridges Ψ computation and condensation test conforming to EN ISO 10211 and EN ISO 13788

Mold Dynamic

Mold Dynamic – Dynamic analysis

All the Pro features, thermal lag and analysis over time

Mold 3D

Mold 3D – Tridimensional computation

Pro and Dynamic versions in three dimensions

Do you want to try Mold Simulator?

Mold Simulator Viewer is completely free; you can open and explore any project created with Mold Simulator:

After downloading the sample files above, please open them with Mold Simulator Viewer.

What’s new in version 5

  • faster and more accurate simulation algorithm;
  • totally renewed and faster interface;
  • new print reports;
  • new integrated bridge generator system and library of preset templates;
  • possibility to import three-dimensional meshes (3D version);
  • automatic ground boundary condition calculation with algorithm ISO13788;
  • automatic ground and ceiling boundary temperatures according to ISO13788;
  • conventional and detailed ISO6946 Rsi calculation settings;
  • possibility of using segment materials with heat generation;
  • improved algorithm for detecting increased surface resistance.

Plugins and features for thermal bridges

Every version of the sofware has a different set of features (see below for a full list). Since version 3 you can expand Mold Simulator capabilities by activating additional plugins, which can be purchased separately.

Some plugins’ features are already available by certain versions of the software (for example, geometric tools are already implemented by Mold Pro). Here you are the full list of plugins:

NameFeaturesAvailable for ProAvailable for DynamicPrice
Import/Export packLBNL Therm importXX€60 + tax
ISO 15099ISO 15099 cavities, ISO 15099 boundary conditions, ISO 15099 glazing systemsXX€60 + tax
PHI modulePassive House Institute - specific featuresXX€60 + tax

Create you own slide shows!

You will be able to create real slide shows of your projects: simple “record” some screenshots and Mold Simulator will automatically generate an animation. To distribute it, for example, to some clients, is immediate: you just have to make them open your projects, containing the presentation, with the “Viewer” version of the software. This version is completely free and time unlimited, but it can just view files and not modify them.

Fully customizable print report

Forget the old reports: now you can modify and customize reports as you wish. You’ll have an internal editor (similar to the ones you’re familiar with) to define every single detail you want to print. It is even possible to save reports i various file formats (also html, readable by any computer). You’ll be able to insert various kinds of labels, adding more information; it is a key point for a complete documentation.
Mold Simulator is distributed by Dartwin; please visit for more information.
Here you are a list of blog articles about Mold Simulator:

compute linear thermal transmittance of thermal bridges with few and simple stepsXX
compute the thermal characteristics of building elements, windows and ceilings according to the ISO 10211 standard; in particular, once you have specified material properties and boundary conditions, using the finite element method you can find the distribution of temperature and heat flow over the cross sectionXX
create your own custom materialsXX
visualize and print many different computation results: isotherms, heat flow, condensation areas, meshing triangulation, boundary conditions and many othersXX
find areas of condensation according to the standard ISO 13788-2003XX
perform Glaser analysis to check for interstitial condensation (and eventually evaporation) according to the standard ISO 13788XX
perform Glaser analysis using simulated temperaturesXX
compute thermal lag, according to EN ISO 13786X
perform condensation and thermal analysis over time, considering heat capacity of materialsX
use boundary conditions depending on timeX
automatic cavity detectionXX
construction axis managementXX
subdivide and manage progect in blocksXX
geometrically transform entire projectXX
customizable rendering settingsXX
boundary conditions groupsXX
3D view and managementXX
EN 12898 correct emissivity computationXX
area computation methodXX
customizable reportsXX
additional material types: EN ISO 10077-2 insulation panel, segment, transparent, gasXX
EN ISO 10077-2, EN 1745, UNI 10351 material librariesXX
import projects from DXF filesXXX
export project to DXF filesXXX
LBNL Therm importX
ISO 15099 cavitiesX
ISO 15099 boundary conditionsX
ISO 15099 glazing systemsX
parametric bridge generatorXX
(IEP = import/export pack, 15099 = ISO 15099)