QB - QUALITY FOR BUILDINGS,
IS THE CSTB'S CERTIFICATION MARK.
It's a mark of the quality, performance and reliability of products and systems used in construction. QB also covers the certification of tools and services.
Serving professionals, QB is intended for all stakeholders - manufacturers, contractors, dealers or distributors, standards organizations and project owners - to guide them in their choices.
This certification promotes the know-how of construction industry stakeholders, in France and abroad.