The supervision of assembly and installation is particularly important for us, to ensure the agreed quality. Our principle is that deviations from the agreed planning must be identified at an early stage, documented and the implementation corrected. This controlling refers both to production and manufacturing as well as to the assembly on the building site:

• Verification of compliance with the approved design, ensuring compliance with the agreed qualities, standards and test series
• Regular reporting on production progress; the reports contain recommendations for possible improvements as well as a list of unfulfilled services, performance arrears, defects identified

• Verification of compliance with the approved design, ensuring compliance with the agreed qualities, standards and test series
• Inspection of examples of facade sections as reference values for determining the quality of workmanship – benchmark inspections
• Involvement in performance tests on the facade on the building site (water impermeability, sound insulation, blower door test, etc.)
• Random inspection of the installation work on the building site
• Regular reporting on the installation work including the identification of discrepancies with the original planning