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Expert opinions


ift Centre of Technical Experts

Building components such as windows, doors and facades are complex systems that are critical for the functions and suitability of use of a building. Furthermore, these building components play an important role in the architectonical design and the value of the property. It is accordingly problematic, if these building components do not work as desired.

The ift Expert Centre utilises its experience spanning several years in the fields of testing, certification and research, where the holistic consideration of building components and installation conditions is always in the foreground. The assignments can be dealt with comprehensively.


Expert opinion and consultancy

  • during planning

  • during construction process and approval in new buildings or at refurbishments

  • in case of damage

  • for the technical assessment of existing buildings

The team of ift Centre of Technical Experts

We have a competent team of officially appointed and sworn specialists and other expert engineers and scientists available for all issues and queries.

For more details about the person and their areas of resposibility, please click on the name.


Subject areas

  • Windows and facades
  • Wall connections


  • Private and legal opinions for windows and facades
  • Building consultancy and support for house owners and architects
  • Knowledge transfer at national and international events
  • Publications (specialist articles, codes of rules and regulations)


Subject areas

  • Windows, facades and doors
  • Construction of accessible buildings



  • Technical Hotline
  • Compilation of statements and short assessments
  • Building consultancy and support for house owners and architects regarding freedom from barriers
  • Knowledge transfer at national and international events
  • Publications (specialist articles, codes of rules and regulations)



  • Coordination requests for expert opinions
  • Appointments


Subject areas

  • Accoustics, Sound insulation and acoustic insulation
  • Windows, doors and industrial gates



  • Expert opinions regarding acoustic performance
  • Testing of sound insulation in the laboratory and on-site
  • Research topics regarding building acoustics
  • Collaboration in national and international standards committees for measurement and demand-based standards as well as VDI-guidelines
  • Knowledge transfer at national and international events



  • Koordination Gutachtenanfragen
  • Terminvereinbarungen




ift Rosenheim GmbH

Centre of Technical Experts
+49 8031 261-2161
+49 8031 261-2511

Extensive assessment and consultancy in the areas:


Building components

  • Automatic doors

  • Exterior doors

  • Roof windows

  • Facades

  • Windows

  • Joints

  • Glass roofs

  • Interior doors

  • Ventilation devices

  • Rooflight


  • Roller shutters

  • Solar protection

  • Gates

  • Partition walls

  • Doors

  • Glazing

  • Conservatory


  • Freedom from barriers

  • Building physics

  • Structural damage

  • Ventilation

  • Fire Protection

  • Burglar intrusion

  • Colour / Optics

  • Wood destruction

  • Malfunction/Operational fault

  • Breakage of glass

  • Ventilation

  • Assembly, installation

  • Verifications (CE, test certificates, general approval by building inspection authorities)

  • Safety in use

  • Smoke control

  • Damage / wear

  • Longitudinal wave propagation

  • Sound insulation

  • Mould

  • Safety

  • Statics, structural analysis

  • Structural Glazing

  • Dew point performance

  • Tolerances

  • Impact sound insulation

  • Leakages

  • Incompatibility

  • Thermal insulation

  • Maintenance, services, repair


  • Sealing

  • Spacer / edge seal / warm edge

  • Installation gap

  • Fittings, hinges

  • Parapet / railing

  • Insulation materials / insulation

  • Vapour barrier

  • Sealing strip, sealing compound, sealant

  • Window sill / shutter

  • Veneer

  • Plaster profile

  • Panels

  • Frame profile

  • Roller shutter guides / belts / boxes

  • Locks, latch bolt engagement

  • Screws / dowels / anchors

  • Thresholds

  • Safety glass / SSG / LSG / TSG

  • Sash bar

  • Thermal barrier

  • Joints

  • Frame

  • Functional glass

  • Handle / knob

  • Venetian blind

  • Cable

  • Edge

  • Bonded joint

  • Block

  • Bracket

  • Ledge

  • Insulating glass units

  • Surface / coating / lacquer / glazing

  • In-situ foam


  • Aluminium

  • Glass

  • Wood

  • Plastics

  • Steel

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