The Application of Minimum Environmental Criteria (CAMs) Construction and Sustainable Transformation of Public Building Stock

2. Faculty of Civil Engineering, Telematic University UNICUSANO, Italy

Abstract: Urban and territorial regeneration involves important economic, social and cultural advantages, enhancing public building stock degraded from a structural, typological, energetic and environmental point of view. Buildings are responsible for approximately 40% of energy consumption and 36% of CO2 emissions in the EU. Currently, about 35% of the EU's buildings are over 50 years old and almost 75% of the building stock is energy inefficient. Each year only 0.4-1.2% of the building stock is renovated. The aim of this paper is highlight how to transform the public building stock having a testimonial value, through the circular economy and energy efficiency to make urban reuse strategies more sustainable so it allows future generations to recognize the same cultural, social and environmental values that we can recognize today. In line with the above, the National Action Plan refers to specific decrees issued by the Ministry of the Environment identifying a set of “minimum” environmental criteria for the diffusion of "green" tenders in construction. In this context, the executive project assumes a fundamental role since the contracting stations, in case of works, must have an executive project already in conformity with the CAMs. Through the application of particularly significant criteria, the paper intends to provide operational indications, showing how this innovative tool is able to generate new social and economic value in existing buildings.