**6. Summary**

The article presents the European platform, developed and tested within the MEZeroE project, supporting the CE marking and placing of innovative construction products on the market.

The platform gives an opportunity to overcome legal barriers related to the lack of standardization procedures enabling the quick placing of innovative construction products on the market to be achieved. The platform is publicly available at https://www.mezeroe. eu/, accessed on 1 December 2022, where manufacturers of modern construction products can obtain additional information and join the MEZeroE community.

Funded by European Union Horizon 2020, the MEZeroE project aims to create a platform that combines science and business to achieve the development of nZEBs. The platform is building a comprehensive knowledge management environment as well as customized trainings. It will serve as an intermediary between stakeholder groups, from the design stage to the end user of nZEB envelope products.

Manufacturers of modern construction products implementing innovative solutions, through the MEZeroE platform, have a chance to speed up the process of marking their products with the CE mark and placing them on the market and thus facilitate the widespread construction of zero-emission and zero-energy buildings.

**Funding:** This research received no external funding.

**Institutional Review Board Statement:** Not applicable.

**Informed Consent Statement:** Not applicable.

**Data Availability Statement:** Not applicable.

**Acknowledgments:** The article was written based on the author's knowledge gained through her work on the MEZeroE Measuring Envelope project for products and systems contributing to healthy, nearly zero-energy buildings, which received funding from EU Horizon 2020 research and innovation program under subsidy No. 953157. The publication cost of this paper was covered with funding from Polish National Agency for Academic Exchange (NAWA): "MATBUD'2023—Developing international scientific cooperation in the field of building materials engineering" (BPI/WTP/2021/1/00002, MATBUD'2023).

**Conflicts of Interest:** The authors declare no conflict of interest.
