This package allows you to perform thermal analysis in variable and steady state of any building element, both masonry structures and fenestrations, in compliance with the relevant regulations.

Thermal analysis of the frame/wall joint
The frame installation joint is also a boundary area between two standards: EN ISO 10077-2 for the frame and EN 10211 for the wall part. The two standards provide different methods for calculating cavities and assigning surface resistances. Furthermore, for an accurate calculation of the linear transmittance Ψ of the thermal bridge between frame and structure, it is necessary to know the actual transmittance Uf of the frame and Ug of the glass, reported in the section to be calculated.
Having both programs, the frame calculation functions are also available within Mold Simulator. When analyzing a wall joint with a frame, it will be possible to:

• calculate the cavities of the installation joint (masonry, subframe, jambs, sill) according to ISO 6946 and those of the frame according to ISO 1077-2
• apply the increased surface resistance on the inner contour of the frame, as provided by ISO 10077-2
• use the library and calculation functions of the insulating glass unit to obtain the precise values of Ug and the surface temperature on the glass/frame edge

 

MOLD SIMULATOR DYNAMIC

Thermal Bridge and Condensation Analysis in Variable Temperatures
is a two-dimensional or three-dimensional finite element (FEA) modeler for dynamic and steady-state thermal calculations of building structures, thermal bridges, and for analyzing the risk of surface and interstitial condensation in variable temperature conditions of walls, floors, roofs, and other building structures.

Mold DYNAMIC allows you to perform simulations with time-varying input parameters. You can assign time-dependent curves of temperature, humidity, and thermal flow to the structure’s boundaries (for example, solar radiation on a wall or thermal flow in a radiant system). The curves can be created using the program’s tools or imported from tabular data, such as climate data files.

Mold DYNAMIC performs a series of finite element analyses of the structure using successive points on the boundary condition curves and taking into account the results of the previous simulation. In this way, the actual trend of heat flow and temperature over time is simulated at every point of the structure. It is therefore possible to see, for example, the trend over time of the sections of the structure subject to mold or surface condensation as the temperature, humidity, and solar radiation on the walls vary. Or you can evaluate the temperature trend on the surface of a wall or radiant floor during operation and during the system’s on and off cycles. Or perform step-by-step dynamic Glaser analysis and calculate the volume of condensate and re-evaporated moisture over any period of time.

Mold DYNAMIC also automatically performs additional finite element analyses with periodic input data to calculate all the dynamic characteristics of the complete structure according to the standard UNI EN ISO 13786, such as: Z heat transfer matrix, phase shift, attenuation, areal heat capacity, admittances, dynamic thermal transmittance, etc., necessary for summer calculation. It is important to emphasize that these values are measured on the actual structure under examination, including complex building components with thermal bridges, not just for homogeneous layer packages as is usually the case.

But that’s not all! With Mold DYNAMIC, you can also define the conductivity behavior of a material as the temperature changes or the temperature trend along a boundary.

VALIDATION
Mold Simulator was developed according to the following standards:

• EN ISO 6946 “Building components and elements – Thermal resistance and thermal transmittance – Calculation method”
• EN ISO 10211 “Thermal bridges in buildings – Thermal fluxes and surface temperatures – detailed calculations.”
• EN ISO 13788 “Hygrothermal performance of building components and elements. Internal surface temperature to avoid critical surface moisture and interstitial condensation.”
• EN ISO 13786 “Thermal performance of building components – Dynamic thermal characteristics – Methods of calculation.”

 

FRAME SIMULATOR

Frame Simulator is a professional tool that allows for a complete thermal analysis of a frame or a curtain wall module in a short time.

The program is very easy to install and can be used even without extensive IT or thermal knowledge. In Frame Simulator, drawings can be imported in DXF format, and it takes just a few minutes to go from drawing to final result. The thermal calculation is fast, and the results are immediately interpretable with highly effective and realistic images and graphs.

In addition to obtaining the Uf transmittance value and the PSI linear transmittance of the spacer, with Frame Simulator, it is possible to see the heat flow trend at every point of the section and identify the most critical areas to intervene.
The program also clearly indicates the possibility of condensation on the internal surfaces of the frame.

With the Frame Composer module, included with the software, you can calculate the thermal transmittance (Uw and Ucw) of complete windows (frames + glazing) and curtain walls, from simple single-sash windows to complex multi-sash combinations with internal blinds, roller shutters, or external shutters. It is also possible to evaluate the thermal resistance contribution of shading devices.

SOFTWARE MODULES
The software includes two calculation modules:

• Frame Simulator for finite element analysis of frames (Uf, Ψ) and roller shutter boxes (Ursb) according to UNI EN ISO 10077-2:2025, and for calculating curtain walls (UTj, ΨTj) according to ISO 12631:2017
• Frame Composer for calculating the Uw transmittance of the entire window or Ucw of the curtain wall, the Ug of the glazing, and the additional resistance of the shutters

VALIDATION
The software is validated according to the new UNI EN ISO 10077-2:2025 standard (thermal transmittance calculation – numerical method for frames).