Cool roofing: a local and efficient solution in Bouches-du-Rhône
In a tense climate, professionals in the 13th department are seeking concrete solutions to limit excessive heat in their buildings. Cool roofing, offered by the company Le Toit Blanc, meets this requirement with a simple, measurable, and sustainable approach.
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Understanding the principle of cool roofing
Cool roofing is based on a clear physical principle: reflecting heat rather than absorbing it. By applying a white resin with high solar reflectivity to roofs, the temperature rise of exposed surfaces is significantly limited. This action reduces the heat transmitted inside the building.
A dark roof easily reaches 70 to 80°C in the middle of summer. A roof treated with cool roofing, on the other hand, remains below 40°C. This difference translates directly into better thermal comfort for site users, reduced energy consumption, and less wear and tear on air conditioning equipment.
The White Roof know-how
Le Toit Blanc is a family business specializing in building protection through the application of technical resins. The team implements a structured process that includes thermal audits, surface preparation, sampling, and on-site application without business interruption.
The resins used are VOC-free, with a high SRI rating, tested to resist aging, fouling, and standing water. Their estimated lifespan is up to 25 years.
Why use cool roofing in the 13th arrondissement?
In the Bouches-du-Rhône region, exposure to solar radiation is among the highest in France. Roof temperatures regularly exceed 60°C starting in May. This environment impacts businesses’ energy costs, working conditions, and machine performance. Cool roofing immediately reduces all of these impacts.
For logistics sites, warehouses, large retail outlets or public buildings, the benefit is twofold: comfort and savings.
What types of roofs are affected?
Cool roofing can be implemented on many supports:
- Concrete
- Bitumen
- Resin
- Steel tray
- Fiber cement
The preparation varies depending on the material, but the goal is always the same: to ensure excellent adhesion and even distribution of the coating. Le Toit Blanc adapts its products and techniques to each project.
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Eligibility for aid
Roofs treated with cool roofing using SRI-certified resins can qualify for energy savings certificates (ESCs) for the tertiary sector. Le Toit Blanc assists its clients in preparing the application.
This helps reduce the overall cost of the intervention while strengthening the environmental coherence of the project.
Integrating a cold roof into your overall strategy
While cool roofing is an excellent gateway to improving thermal performance, it also fits into broader energy strategies. A cool roof is a surface that doesn’t emit heat, which also improves the efficiency of photovoltaic panels, lowers the ambient temperature around the installations, and increases overall comfort without active mechanisms.
This simple measure also makes it possible to postpone or avoid the replacement of oversized air conditioning systems, which represents a considerable financial gain in the medium term.
Feedback from Bouches-du-Rhône
In a business park in Salon-de-Provence, a 2,500 m² logistics warehouse was equipped by Le Toit Blanc. Before the intervention, the interior temperature regularly reached 37°C. After the treatment, it did not exceed 30°C throughout the following warm season. Energy consumption decreased by 27% between two comparable years.
The site manager also mentioned improved indoor air quality and overall increased comfort for operators, without changing existing ventilation equipment.
Cold roof: much more than white paint
It’s essential to distinguish between a simple white paint job and a professionally installed cold roof. A cold roof relies on technical products, controlled application, performance testing, and a guarantee of durability.
The products used by Le Toit Blanc meet the requirements of the ETN (New Technique Survey), with certified references tested in extreme conditions.
For which profiles?
Le Toit Blanc works with:
- Tertiary buildings
- Logistics platforms
- Local authorities
- Industrial zones
- Sensitive sites (health, food industry, storage)
The cold roof adapts to all needs, from single buildings to multi-site chains. Shared solutions are also possible across a global real estate portfolio.
What results can you expect?
Out of 10 buildings treated by Le Toit Blanc in Bouches-du-Rhône in 2023:
- 100% saw a measurable thermal gain
- 9 out of 10 saw their summer electricity consumption drop by 20 to 35%
- 7 out of 10 have included the operation in their carbon footprint
These figures confirm the technical and economic interest of the system for any site manager or technical director wishing to sustainably optimize the building envelope.
A complete, managed, documented service
Each project is subject to comprehensive reporting. You benefit from a preliminary study, thermal surveys, site monitoring, and clear acceptance documents. The entire process is transparent, with a dedicated project manager.
This allows the operation to be promoted both to internal bodies and to external auditors or stakeholders.
