In good shape and closed up – well connected with WIDOPAN

A chain is only as strong as its weakest link.

This is also true of structural waterproofing. For what good is it if 99.9% of the roof is watertight, but rain gets into the building at one point? And usually the most expensive machine or most valuable piece of furniture is in this corner. Only reliable waterproofing of every detail ensures long-term waterproofing success.

Connections to penetrations, fixtures and rising structural components represent the biggest problem on flat roofs and constitute the weak points of the waterproofing.

Traditional materials, such as bitumen sheeting or plastic roof sealing sheets frequently reach their limits here.


Liquid plastics represent an alternative to other waterproofing materials, and are the better solution for such applications.

It is often very difficult to produce a connection on light cupolas and PVC fans as well as on window and door profiles with welded bitumen sheeting, due to the frequently insufficient connection heights. In addition, there is a risk that the plastic component becomes burnt and disfigured or even rendered useless by the burner.

With WIDOPAN liquid plastic waterproofing you find the right connection to almost all materials in the case of fixtures, to all existing undergrounds.

In the case of new construction and renovation combination with the best known bitumen, plastic and rubber sheeting is possible and has been demonstrated in experiments. The results are available upon request.