Warehouses, businesses, offices, hangars and agricultural buildings.
Professional buildings
Make the most of a rooftop while protecting the building.
Industry, tertiary sector, warehouse, hangar or agricultural building: the study must reconcile structure, waterproofing, security, site operation and energy performance.
Regulatory information verified on June 24, 2026.
AYM ENERGIE study
What we check before recommending a solution.
Installable capacity is never the only criterion. The site, its use, the grid, local constraints and project economics must remain consistent.
Roof capacity
Useful surface area, loads, spans, condition of the roof, waterproofing and possible reinforcement needs.
Safety and Operation
Access, circulation, smoke extraction, technical equipment, maintenance and business continuity.
Electrical profile
Load curves, subscribed power, self-consumption, injection and connection architecture.
Technical implementation
Layout, setbacks, electrical rooms, cable trays, inverters and interfaces with the building.
Economic performance
Productivity, CAPEX, connection costs, savings, revenues and valuation scenarios.
Administrative framework
Town planning, roofing obligations, ERP/ICPE constraints and technical documents in the file.
Regulations & procedures
Rules to know before submitting the project.
Certain professional buildings are subject to renewable energy production or greening obligations during their construction, extension or major renovation. The project must also respect the safety rules specific to the site’s activity.
This information is general. The PLU, the protected sectors, the network manager and the characteristics of the site may modify the applicable procedures.
- Buildings concernedThe Construction Code targets in particular commercial, industrial, artisanal, administrative buildings, offices, warehouses, commercially operated hangars, hospitals, sports facilities and school buildings exceeding certain thresholds.
- Load thresholdThe obligation applies in particular to constructions creating more than 500 m² of footprint, as well as to certain extensions and major renovations of more than 500 m².
- Minimum surface areaThe minimum roof proportion increases to 40% from July 1, 2026, then to 50% from July 1, 2027.
- ExceptionsExemptions may exist for financial, technical, architectural or security constraints or when costs are disproportionate.
- Special casesERP, ICPE sites and buildings with roof safety devices require specific checks.
Recommended route
Transform an idea into a documented decision.
Collect data
Plans, framework, roofing, consumption, activity and technical equipment.
Check support
Analyze the structure, waterproofing, access and safety constraints.
Build the scenarios
Compare power, layout, self-consumption, injection and connection.
Document the choice
Produce plans, hypotheses, results and limits useful to the project owner.
Prepare the production
Coordinate technical interfaces before the consultation or construction site.
Sources & original texts
Consult the official sources directly.
The links below open the official pages used to summarize the rules of this typology.
service-public.fr
Renewable production or revegetation obligation
Buildings concerned, thresholds, minimum surface areas and exceptions.
Consult the official source ↗ legifrance.gouv.frArticle L. 171-4 of the Construction Code
Legal text governing roofing obligations and the buildings concerned.
Consult the official source ↗ service-public.frInstall photovoltaics for a business
General procedures and references to applicable planning authorizations.
Consult the official source ↗Regulatory content verified on June 24, 2026. Local rules, thresholds, deadlines and versions in force must be confirmed for each project.
Frequently asked questions
The first answers to frame the project.
Depending on the building and the operation, the obligation can be met by a renewable production process, a greening system or another equivalent device, subject to applicable texts.
It is essential when the bearing capacity is not documented or the roof presents particular constraints. It may require the intervention of a structural engineering consultancy.
A first estimate is possible, but the load curves greatly improve the precision of the sizing and economic analysis.
Do you have a professional roof to study?
Transmit the plans, consumption and known constraints of the building.