Preventing and repairing blistering

Blistering and folds usually appear on façades and, less frequently, on roofs. They usually occur on the parts of the building that experience the most sunlight (southern façade). These areas are subject to high temperatures, especially if the panels have a dark coating, which absorbs more heat. Temperatures on these façades may rise to 65 to 90 degrees Celsius. This will also lead to increased tension in the panel. No matter the colour, however, all panels may suffer from blistering. It also happens on the insides of roof or façade panels. In this case, the issue is often related to the adhesives used.

Blisters are primarily an aesthetic issue. From a technical point of view, the panel performs no different than panels without any blisters. Blisters may grow due to temperature fluctuations, however, resulting in stretches and folds in the outer layer. At this stage, the blister may become impossible or very difficult to repair. As such, we recommend having blisters fixed as soon as possible. Feel free to contact us for more, non-binding information.

Blistering differs from project to project. The specifics highly depend on the location of the building, the panel type in question, the size etc. We usually recommend an on-site visit to discuss the possibilities.

For projects abroad, we need as much information as possible, including pictures, a video and a plan showing the positions. Based on this, we will make an estimate of the costs and a quote for an on-site trial repair.

Van Heemskerk operates all over the world. Distance is not an issue. We have performed repairs in the following countries, among others:

• Belgium
• Canada
• Dubai
• Germany
• Egypt
• France
• Italy
• Croatia
• Oman
• Poland
• Qatar
• Romania
• Saudi Arabia
• Spain
• Turkey
• Uruguay
• Switzerland

Feel free to contact our experts for non-binding information!