In order to simplify the current certification scene in the construction sector and maximize the legibility of benchmarks for the quality, performance and reliability of products, services and stakeholders, the CSTB is launched QB - Quality in Building at the end of 2015.

The excellence and impartiality of the certification process and the level of certification requirements form the basis of the technical added value of QB certification, thus contributing to the continuous reliability of product quality.

The QB mark supports professionals by highlighting the quality of their products, services and skills.

It certifies the compliance of products with conditions set out in certification reference systems, which are established through the participation of all stakeholders. These conditions come from commonly accepted standards and include additional requirements that take into account the needs of users or add value to products.

As a certification body, the CSTB performs all certification operations, from the development of reference documents to the issuance of certificates and monitoring of certificate holders. It determines the terms of use for the QB mark, which are described in the "Certification Rules for the Mark".

Le CSTB définit les conditions dans lesquelles la marque QB est délivrée aux demandeurs, maintenue aux titulaires, suspendue ou retirée. Ces conditions sont décrites dans le référentiel de certification.

Products assessed

Reference Name Certification mark
QB02-01 Prestressed concrete beams QB
QB02-02 Pre-slabs QB
QB02-03 Hollow core slabs QB
QB02-04 Linear structural elements made of concrete QB
QB03 steel and steel-concrete composite structures QB
QB04 Windows for sloping roofs QB - Acotherm
QB06 System for the treatment of joints between panels in wall/ceiling structures QB
QB07 Masonry walls and related masonry units QB
QB08 Water supply or drainage piping QB
QB09 Sewerage QB
QB10 Hose fittings QB
QB11-01 Adhesives for tiles QB
QB11-02 Floor finishes QB
QB11-03 Single-layer plaster mortars QB
QB11-04 Thin layer mortars for small masonry units QB
QB11-05 Water protection systems under tiles QB
QB12 Glass fibre meshes for façade renderings QB
QB13 Block slabs or grooved plates for floor heating and cooling systems QB
QB14 Thin soundproofing underlayers QB
QB15 Built-up cladding products, vetures, cladding products and soffit products QB
QB16 Adhesives for thermoplastic piping QB
QB17 Fibre-cement slates QB
QB19 Pre-insulated systems QB
QB22 Water treatment in the building QB
QB23 Insulating material made of in situ sprayed polyurethane QB
QB24 Water network in the building QB
QB25 Flexible underlays for discontinuous roofing QB
QB26 Laminate floor covering systems QB UPEC
QB27 Strips of tufted and woven carpet QB UPEC
QB30 Resilient floor coverings QB UPEC
QB31 Textile floor coverings QB UPEC
QB32 Ceramic tiles for floor coverings QB UPEC
QB33-01 Covering products (lacquers and laminating foils) QB
QB33-02 Covered profiles (lacquered profiles and laminated profiles) QB
QB34 Vinyl compounds and their manufacture for PVC window profiles QB
QB35 Ventilated Hips and Ridges QB
QB36 Flexible Materials QB
QB37 Humidity-controlled ventilation system QB
QB38 Flexible underlays for waterproofing for walls QB
QB39 Solar systems QB
QB40 Ducts QB
QB42 Sandwich panels QB
QB43 Support Pedestal QB
QB44 Steel reinforcements for window products QB
QB46 Fluids screeds QB
QB48 Windows installation service QB
QB49 Aluminium profiles with thermal barrier QB
QB50 Ceramic tiles for wall coverings QB - WallPEC
QB51 Polycarbonate Materials System QB
QB52 Gypsum board partition systems QB
QB53 Modules QB
QB54 Build-up cladding system QB
QB55 Flat-roof QB
QB59 PVC window profiles QB