Although thermally sprayed aluminum layers (TSA) have been recognized as an effective corrosion protection system within the last 20 years, the increase in applications has not achieved the original expectations, with the exception of off-shore structures. The fact that TSA coatings were unsuccessful as an alternative to traditional organic coatings was not due to unsuccessful research and test results, but rather to the organizations that maintain large steel structures. The reasons for this are primarily economic. This paper provides information on life cycle cost models that were introduced and refined to justify the much higher level of investment. It describes a model that was developed that describes the ecological advantages of TSA over traditional, organic coatings. This model describes three main ecological aspects: energy, waste, and the emission of volatile organic compounds. Paper includes a German-language abstract.