

Environmental performance calculations


Clarification: recycling and detachability in the Assessment Method - version 1.0 - february 2025
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Reusability plays an important role in reducing the environmental impact of building materials. The Dutch Environmental Database Foundation (NMD Foundation) distinguishes two forms of reuse in the Environmental Performance of Buildings Assessment Method (Assessment Method): unintented reuse, in which products are reused without a previously established plan, and inentended reuse, which is aimed at planned reuse with a focus on quality and design. Unintented reuse is valued using the reuse factor H (standardly set at 0.2), while intented reuse uses the quality factor K, which reflects the remaining quality of a product after the first phase of use as a percentage from 1 to 100.




Application forms license NMD Process database
Calculation method: Characterisation factors used in the Assessment Method
