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Polyisobutylene (PIB) is the secret of the success of Rhepanol. PIB is a synthetic rubber that provides waterproofing for flat roofs and guarantees the long service life of our product. For example, our portfolio of references includes the world's oldest synthetic membrane roof, which is located in Eggenstein-Leopoldshafen. Rhepanol offers not only a long service life, but also features an outstanding environmental profile. This roofing membrane system is available in three different versions: "classic" as Rhepanol fk, for landscaped roofs as Rhepanol hg and for photovoltaic systems as Rhepanol fk white. |  | 
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