Rhepanol hg means waterproofing and root penetration protection in a single membrane. It is used for high-quality roofing combined with extensive or intensive vegetation. The durability of the roofing membrane results from the strong features of polyisobutylene as well as two further advancements. Rhepanol hg has been reinforced with an integrated central glass fleece. Furthermore, the membranes can be homogeneously welded with hot air.