A simple preventative and diagnostic maintenance inspection once a year is all that is necessary to ensure the bitumen waterproofing system gives long and faultless service.
In renovation, it is often a simple matter of adding to the existing waterproofing, with no need to dismantle the old. This can be done twice during the building’s lifetime, extending the service life to approximately 90 years and so eliminating a major source of waste.
Given a change in function of the building, or new installations within the building, bitumen roof coverings can easily be adapted to the changed circumstances with no need to dismantle the existing roof covering.