On a Parisian construction site, the visible part (structure, lifting, welding) conceals an equivalent volume of administrative work. Dematerialized urban planning declarations, traceability of steels, execution classes according to EN 1090: each step generates technical documents whose absence or error halts the site. It is precisely this knot between steel and paperwork that players like Chantieraccess seek to untangle for professionals in Île-de-France.
EN 1090 Execution Class and Steel Traceability on a Parisian Site
The European standard EN 1090 imposes a strict framework for the execution of steel and aluminum structures. It defines four execution classes (EXC1 to EXC4), each with increasing requirements for control, welder qualification, and documentation.
For a tertiary building or a residential building in Paris, the chosen class depends on the service category, production category, and consequence class of the structure. A collaborating floor in a moderately seismic zone does not fall under the same level of control as a lightweight pedestrian bridge.
What truly impacts the schedule is traceability. Each batch of steel must be accompanied by its material certificate (type 3.1 according to EN 10204), identifying the cast, grade, and mechanical properties. On a dense construction site in the city center, where multiple suppliers deliver simultaneously, rigorous monitoring of steel batch traceability avoids non-conformities during inspections by the verification body.
The administrative and steel support with Chantieraccess makes perfect sense here: centralizing certificates, cross-referencing delivery notes with execution plans, and archiving welding reports in a single file accessible by the control office.
Dematerialization of Urban Planning Declarations in Paris
In Paris, urban planning formalities must be carried out exclusively through dematerialized means. The declaration attesting to the completion and compliance of the works (DAACT) must be submitted via the City’s online portal. This requirement, mundane on paper, complicates the lives of metal construction companies accustomed to working with paper Cerfa forms in other regions.
The DAACT file for a steel structure generally includes certificates of compliance with seismic regulations, inspection reports of assemblies, and, where applicable, the certificate of compliance with acoustic regulations. Forgetting a document delays the lifting of reservations and, by extension, the delivery to the project owner.
Frequently Missing Administrative Documents
- Material certificates for delivered steels (EN 10204 type 3.1), often scattered between the dealer, the fabricator, and the installer
- Qualification reports for welders, to be renewed if the validity period has expired between the order and the actual start of the site
- Certificate of compliance with RE2020 when the new project is subject to this regulation, along with the environmental and health declaration sheets (FDES) of the steel products used
- Updated as-built plans after site modifications, necessary for the DAACT but rarely produced in real-time
Compiling these documents throughout the project rather than in a rush at delivery radically changes the timeline for obtaining the certificate of compliance.
FDES and RE2020: Steel Facing Environmental Requirements
For new projects subject to RE2020, the environmental data of products count in the overall evaluation of the building. The FDES (environmental and health declaration sheets) document the carbon impact of a product over its entire life cycle.
Construction steel has a particular profile: its carbon footprint at production is significant, but its almost total recyclability improves its balance at the end of life. Recent sector discussions highlight the reuse of profiles and the decarbonization of manufacturing processes as levers to reduce the carbon weight of metal structures.
Administratively, this means that the technical file of a steel construction site in Paris must now include the FDES corresponding exactly to the products implemented, not generic sheets. Each profile, each connector must be linked to its specific FDES for the LCA (life cycle assessment) calculation of the building to be acceptable.
Coordination Between Craftsmen and Quality Monitoring on a Steel Site
A metal construction site involves several trades in tight sequences: metal carpenter, qualified welder, installer, control office, sometimes a corrosion protection specialist. In Paris, logistical constraints (limited truck access, regulated delivery times, reduced footprint) further compress the schedule.
The quality of support is measured by the ability to synchronize these interventions while keeping the administrative file up to date. A delay in steel delivery shifts the assembly, which shifts the inspection, which shifts the DAACT. We find that the primary factor of deviation on a Parisian steel site remains the missing document, not the missing bolt.
Critical Control Points
- Verification of the compliance of bolted assemblies (torque, bolt class) before pouring the collaborating floor
- Visual inspection and, depending on the execution class, dye penetrant or ultrasonic testing of welds on site
- Updating the executed work file (DOE) throughout the phases, integrating modifications and signed self-check sheets
A platform like Chantieraccess, by structuring the relationship between the project owner, craftsmen, and control offices, reduces the risk of documents getting lost between three email inboxes and a binder left in the Portakabin.
The real benefit of integrated technical and administrative support is not visible in the construction site photo. It appears on the day when the control office validates the file without reservations, when the DAACT is sent complete on the first attempt, and when the project owner receives a usable DOE, not a box of photocopies.
