Understanding of Construction Product Assessment Issues and Sustainability among Investors, Architects, Contractors, and Sellers of Construction Products in Poland.

The building sector is one of the most critical branches of the economy influencing global warming today. Following the European Union's Construction Products Regulation (CPR), the sustainable use of natural resources in construction is one of the seven basic buildings' requirements. However, due to the lack of provisions in this regard, construction products are not yet subject to mandatory assessment and verification of the constancy of performance in this area. The paper presents the research results with the participation of 842 respondents who are investors, architects, contractors, and sellers of building materials. The analysis of their perceptions of issues related to the term sustainable development and knowledge of selected documents functioning in construction is presented. The share of people who correctly assigned the term sustainable development to equal treatment of environmental protection, economic development, and social development ranged between 52.5% and 65.7%. Knowledge of people associated with construction about the role of the declaration of performance (DoP) of construction products is high (from 73.9% to 99.4% correct answers). For Environmental Product Declaration (EPD), lower knowledge of this document's role was noted, from 24.1% to 56.5% of correct answers. The obtained results indicate the need for further education. [ABSTRACT FROM AUTHOR]