Product classes refer to categories or groups of building products that share similar characteristics, functions, or applications. These categories are defined based on the type of product and its role within the building construction or renovation process. Every country can have its own standardized set of classes.

Product classes are used in the BCI to organize and assess the circularity performance of different building products. Each product class may have specific criteria or indicators associated with it to evaluate aspects such as resource efficiency, recyclability, reuse potential, and environmental impact. By grouping products into classes, it becomes easier to compare and benchmark their circularity performance within a specific context, such as a building project or industry sector.

The establishment of product classes in the BCI allows for a more systematic approach to evaluating and improving the circularity of building materials and products. It enables you to identify areas for improvement, set targets, and make informed decisions towards more sustainable and circular building practices.