Treatment of Weathering and Chalking
Sometimes, a white or grayish discoloration can be observed on coating layers. This is called ‘chalking.’ It can appear as though the color intensity is fading, with visible spots and streaks. In such cases, the coating has been severely affected by UV radiation.
This occurs on roofs and facades with high-pigment colors like white, blue, red, yellow, and anthracite. It is caused by environmental factors such as UV radiation, excessive pollution, and poor maintenance. Sometimes, the use of improper cleaning products is the cause. During chalking, the paint is essentially ‘powdering.’ The top layer of the coating is damaged and has an open structure. Dirt adheres easily, which intensifies and accelerates the chalking process. Without treatment, this process cannot be stopped.
Timely maintenance is essential, as the existing coating has exceeded its lifespan. In this case, maintenance means recoating (respraying) the surfaces. Van Heemskerk can professionally respray your existing steel roof or facade cladding. By recoating the roof or facade, the protective function is restored, the chalking is eliminated, and the lifespan of the facade and roofs is significantly extended.
Do you have any additional or specific questions? Would you like to request a quote? Feel free to contact us!