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!

Plaum
Portrait Nils-Christian Plaum

“The RAL quality mark makes the quality of an invisible product visible and guarantees consistent product characteristics over a long service life.”

Nils-Christian Plaum

Geschäftsführer Glaszentrum Weber + Wagener, Freudenberg

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

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 | Glas Trösch & authorized representative of the SANCO Group

Strobel

"We are part of the RAL Product Certification Program because quality, transparency, and reliability are among our core values. Regular, independent inspections of our products and processes confirm our high quality standards. This benefits not only us but also our customers, who receive consistently tested and reliable solutions."

Andreas Strobel

Head of Technical Product Services - and Management-Systems | AGC INTERPANE

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.