Building component monitor for efficiency impact assessment: A Software Component to identify and visualize energy leaks



The Component Monitor is an extension to ArchiPHYSIK1 that provides a quick and efficient solution for identifying energy guzzlers in buildings. By analysing the conductance values of building components, it is possible to accurately visualise the energy losses in a building. This allows targeted measures to be taken to improve energy efficiency.


The main objective of the newly created extension is to identify the components of a building with the worst conductance values, which contribute significantly to energy waste. The system offers different filters to perform the analysis according to criteria such as component type and transparency. Normative calculations are used as a basis. An additional column should be added to show the transmission heat losses in kWh/a. The calculation for this has to be done by the user, as no precise calculation is available yet.


The extension displays a table of all building components, containing all essential information about the component and displaying it in a diagram. The extension displays a table of all the building components, containing all the essential information about the component and displaying it in a diagram, which can also be displayed in a 3D model of the building if one has been imported.
This allows a detailed analysis of the building’s energy efficiency at various levels. All results can be output in PDF format.


  1. ZONE FILTERING: Users can select specific zones of the building to limit the analysis to these areas. This allows targeted analysis of individual parts of the building.
  2. COMPONENT TYPE FILTERING: By selecting specific component types, users can limit the analysis to specific types of components such as windows, walls, roofs, etc.
  3. TRANSPARENCY FILTERING: This option allows users to analyse transparent components separately from opaque components. Transparent components can often cause greater energy losses and therefore require special attention.


The conductance of a component provides information about its energy efficiency. A high U-value indicates that a lot of thermal energy is lost through the component, while a low U-value indicates good thermal insulation.
The calculation of the conductivity takes into account various factors such as materials, thickness and other component specific properties and temperature correction factors play a crucial role in simplifying and correcting for heat transfer through transmission.


A new ArchiPHYSIK form is programmed with 4D code representing the components of an ArchiPHYSIK project. The names, area, U-value, correction factor and conductance are taken from the existing database and displayed. In addition, a new mean U-value, mean conductance and added areas are calculated for the filtered methods. The calculation of the guide value and the U-value is carried out according to standardised procedures, which are explained in the course of the work. Expression forms will also be programmed and made available.


A new calculation of transmission heat losses in kWh/a is to be developed and added as an additional column in the table. The derivation of the new calculation method will be described and explained in the course of the thesis.


The Component Monitor provides an efficient solution for analysing the energy efficiency of buildings. It visualises the conductance values of components and provides various filtering methods to accurately identify energy guzzlers. In this way, the component monitor supports targeted measures to improve the energy efficiency of buildings.

A new method for calculating transmission heat losses has been developed and integrated into the table as an additional column. The results can be output in PDF format.