The individual items are examined in the context of the construction project and checked to see whether more cost-effective materials can be used while fulfilling the technical properties.

In addition, the specification is checked for completeness so that there are no unexpected costs and therefore no supplements. This makes the construction project more transparent for both sides.

The positions are checked for contradictions so that there are no misunderstandings or errors during implementation. This reduces the risk of structural defects or supplements. This means more safety for Retanol® specialist companies and clients.

The clear identification of all required services ensures that the prices offered correspond to the services and therefore do not vary.