Building physics

In our plannings and consultations, we focuse on users and their needs. In each case, it orients its efforts to the person who will be using the relevant finished facility. Work in the area of building physics seeks primarily to enable a building to meet the following user needs, in the most technically efficient way possible:

  • A comfortable and pleasant interior, with good thermal and humidity behavior
  • Quiet, noise protection
  • Good lighting
  • Good room acoustics
  • Climate neutrality
  • Environmentally favorable building operation

In general, building physics includes the following three focus areas:

Thermal building physics

Thermal building physics focuses especially on a building`s thermal insulation and moisture protection.

  • German Energy Saving Ordinance (EnEV)
    We provide the necessary documentation, as required under construction law, in connection with new buildings and modernizations/renovations – for example, proof of compliance with requirements pertaining to primary energy use, to average thermal transmittance (U-values); to minimum thermal insulation; to summer thermal insulation; to condensation prevention; and to the hygric behavior of structural components. We also provide documentation on compliance with provisions of the German Renewable Energies Heat Act (EEWärmeG)
  • Calculation of thermal bridges
    Determination of heat losses and surface temperatures; measures to prevent condensation and mold formation; reduction of heat losses; detailed calculation of thermal bridges
  • Thermal simulation
    Dynamic calculations for determination of expected room-air and room-surface temperatures
  • CFD flow simulation
    Detailed calculation of fluid temperatures and speeds (liquids and gases)
  • Calculation of hygric behavior
    Proof of condensation resistance

Building acoustics (sound insulation)

Work in the area of building acoustics studies airborne and structure-borne sound transmission in and through building components.

  • Airborne sound
    Study of transmission of airborne-sound waves through structural components – for example, from source areas to specified reception areas – and planning of optimized sound insulation
  • Impact sound
    Study of impact-sound transmission through structural components
  • External noise
    Study of external-noise transmission through structural components, from outdoor areas to indoor sound-reception areas. The possible sound sources to consider include road and railway traffic, sports venues, concert halls, etc. Protective measures include sound-insulating structures (screens), soundproof windows, "smart" structural strategies
  • Sound from technical systems
    Study of sound transmission from technical systems into specified sound-reception areas. Study and calculation of sound from building-ventilation systems, air-duct networks, CHP systems, roof-mounted technical building services, chillers, sanitary systems

Room acoustics

Room acoustics involves work to optimize sound behavior in indoor spaces, including design and installation of sound-reflecting and sound-absorbing surfaces.

  • Absorption surfaces
    Determination of required sound-absorption surfaces (ceiling panels/sails, wall absorbers, carpeting, etc.) pursuant to DIN 18041 and the pertinent building category
  • Reverberation times and simulation of reverberation times
    Proof of compliance with the required reverberation times for Group A uses pursuant to DIN 18041. For lecture halls, media halls, music rooms and presentation rooms, reverberation-time simulation is also carried out
  • Speech intelligibility
    Simulation of speech intelligibility – for example, for purposes of voice-alarm installation, and for dimensioning of electro-acoustic alarm (ELA) systems, with the help of 3D models
  • Acoustic comfort


  • Neue Messe Essen
  • Kultur- und Bildungszentrum Alsdorf
  • Siemens Nacelle Factory, Cuxhaven
  • Medice, Iserlohn
  • NS Documentation Center, Munich
  • LVR Freilichtmuseum, Kommern