Economic Benefits
of Green Roofs

Use of Space

Roof Gardens offer additional space for leisure activities - without requiring money spent on new and expensive building grounds. This is of particular importance in congested urban areas, where open space at ground level may simply be unavailable.

Reduced Renovation Costs

The waterproofing's life expectancy is increased because it is better protected from UV-rays, hail and extreme temperature differences. It can be presumed that the life expectancy of waterproofing is increased to more than 40 years if a Green Roof is installed.

Reduced Sewer Costs

A Green Roof build-up reduces water run-off by 50-90%; any remaining water flows from the roof with a delay. Therefore, Green Roofs ensure that rainwater remains in the natural water cycle, thereby resulting in reduced sewer costs in some areas. This can result in lower utility bills for the owner.

Green Roofs as a Substitute for Lost Landscape Areas

A Green Roof can provide better utilization of the property by acting as a substitute for sacrificed landscaped areas. Increasingly, this may be prescribed in the local development plan.