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par Maxime BOURASSIN le Jul 27, 2025 4:45:59 PM
At a time when environmental issues are more important than ever, many professionals are looking at ways of optimizing their energy consumption. With this in mind, there are various ways of improving energy consumption. The most interesting is thermal optimization. In response to this need, Covalba offers the cool roof. This method uses a white heat-absorbing coating, capable of reflecting the sun's rays during summer or heatwave periods. Thanks to its reflective properties, this paint is guaranteed to reduce the need for air conditioning.
How can white paint combat heat?
It may seem surprising that a paint applied to a building can have an impact on building temperatures. But that's exactly what CovaTherm reflective paint does, preserving a surface's thermal envelope in the heat of the day.
To combat soaring temperatures, this paint has special technical features. It's important to distinguish between the classic white paint used to paint walls and reflective paint.
The former is simply a visual coating, adding color to the walls. A reflective product, on the other hand, is designed to protect the building to which it is applied by reflecting the sun's rays.
💡 Discover other articles about white paint and anti-heat solutions
What are the technical characteristics of this paint?
If the properties of white paint against heat seem particularly interesting, it's thanks to its technical features. This protective solution features unique properties specifically designed to reflect the sun's rays back into the atmosphere, preventing them from entering the building through the roof.
CovaTherm reflective paint has an SRI value of 119, the highest in Europe. The acronym SRI stands for Solar Reflectance Index. In other words, it's a material's ability to reflect the sun's heat while limiting the temperature changes it causes. Thanks to this very high index, CovaTherm white heat-resistant paint is able to reflect up to 94% of solar radiation.
This solution has a lifespan of up to 20 years.
What is a cool roof?
The technical properties of Covalba white paint are a major advantage for professionals. Having this paint applied is absolutely beneficial for protecting people, buildings and equipment.
Cool roof paint is applied to roofs.
Cool roofing originated in the United States. There, the surface area of large cities is far greater than in France. New York, for example, is seven times larger than Paris. Los Angeles, for example, has twelve times the surface area of our capital.
This very large surface area inevitably leads to complications: between the proximity of buildings, the massive presence of tar and the dark hues of building roofs, summer heat beats all records and the situation becomes difficult for residents. In response, the city of Los Angeles has painted its roads white. In this way, the ground temperature was greatly reduced.
As an extension of this initial work, the cool roof was born. This method consists of applying white heat-reducing paint to flat roofs and roof terraces. Today, it's becoming increasingly popular in France, particularly among professionals in the commercial sector.
Is white paint really effective against heat?
Cool roofing has the advantage of sustainably reducing energy bills by limiting the use of air conditioning. It's a highly accessible method, available to most professionals in the commercial sector. Reflective white paint can be applied to the vast majority of waterproofing solutions. So, whether the roof is protected by an EPDM membrane or a PVC membrane, cool roof can be applied.
White paint is particularly effective against heat. When a roof surface reaches a temperature of 80 degrees Celsius, the Covalba cool roof reduces it to a maximum temperature of between 35 and 40 degrees Celsius.
In addition, this method is estimated to reduce energy consumption by 10 to 40% for all professionals.
On a larger scale, these white paints can even help mitigate global warming.
👉 F ind out why their widespread use could lower global temperatures
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