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Preventing and repairing blistering

If sandwich panels are damaged, the top layer may detach from the insulation layer. When this happens, hollow areas form behind the outer panel. When heating up, these areas will start to expand, resulting in a blister, raised area or fold. Not only does this look bad, but it also significantly affects the protective and insulating capacity of the sandwich panels.

During the production and processing of panels, certain conditions may likewise result in blistering. As a specialist in damage repairs, Van Heemskerk has developed a variety of effective repair methods for blistering.

We have a wealth of technical and practical experience when it comes to repairing blistering and folds. As such, we are the expert of choice for many panel manufacturers and suppliers when it comes to repairing and preventing blistering.

Do your panels suffer from blistering, or would you like to prevent this issue? We are happy to offer you advice and can immediately repair any damage on-site. If you contact us early, the panels won’t even have to be replaced. Do you have any questions, or would you like to make an appointment? Feel free to contact us.

Why Van Heemskerk?

  • Over 20 years of experience in roof and façade panels.

  • We have extensive knowledge of your product and always apply the appropriate repair method.

  • We use proven, internally developed repair methods and have a wealth of experience with blister repairs.

  • Repairs take place on-site, which means your panel usually won’t have to be replaced.

  • We are familiar with all types of panels, coatings and profiles.

  • Well-known panel manufacturers and suppliers recommend us, and we work on their behalf all over the globe to repair blister damage.

Where does this issue occur?

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.

Is blistering harmful to my panel?

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.

What is your method when it comes to blistering?

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.

What is your operating area?

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!

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Jutestraat 2
7461 TR Rijssen
The Netherlands
Tel: +31 548-522040