The recognized platform for the highest quality standards in insulating and safety glass

“For us, the focus is on quality”

  • Insulating Glass with Quality Guarantee: Energy Efficiency that Pays Off

    Troisdorf. With rising energy costs and the challenges posed by climate change, the energy efficiency of buildings is becoming increasingly important. A decisive factor in how much heat stays […]

  • RAL

    Sustainable Solutions with the RAL Quality Mark

    Troisdorf. In a time where energy efficiency and sustainability are becoming increasingly important, glazing with the RAL Quality Mark stands as a true seal of quality. Whether for renovation […]

  • Qualität und Sicherheit für moderne Bauprojekte: Flachglas mit RAL-Gütezeichen

    Moderne Fenstergläser müssen heutzutage zahlreiche Anforderungen erfüllen: Sie sollen viel Tageslicht in die Räume hereinlassen, vor Überhitzung schützen, energieeffizient und schallisolierend sein sowie Einbrüche verhindern. […]

Become a RAL quality mark user too!

Gioello

„It is important for the industry to set a mark of quality. The quality mark is also perceived positively by the outside world“ (VIdeo)

Antonio Gioello

Managing Director Sitec Produktions GmbH - Glas Trösch & authorized representative of the SANCO Group

Semar

„The RAL quality mark helps to maintain a high standard of quality“ (VIdeo)

Ernst Semar

Business Director H.B. Fuller | Kömmerling

Maus

„External monitoring gives us proof that the product is always manufactured in consistent quality. This is also important if there are any queries“ (VIdeo)

Ralf Maus

Head of Application Technology / QA / Certifications Glas Trösch

Links to our partner sites

Bundesverband Flachglas e.V.

International

The Bundesverband Flachglas e.V. – the industry’s strong voice for standardization & technology, lobbying and PR.

RAL Quality Mark

Excellence

Internet presence of the RAL quality marks. RAL quality marks are a reliable guide for consumers, companies and the public sector.