Cal, Beatriz Fraga DeGarrido-Marijuan, AntonioEguiarte, OlaiaArregi, BeñatRomero-Amorrortu, AnderMezzasalma, GiuliaFerrarini, GiovanniBernardi, Adriana2021-03-05Cal , B F D , Garrido-Marijuan , A , Eguiarte , O , Arregi , B , Romero-Amorrortu , A , Mezzasalma , G , Ferrarini , G & Bernardi , A 2021 , ' Energy performance assessment of innovative building solutions coming from construction and demolition waste materials ' , Materials , vol. 14 , no. 5 , 1226 , pp. 1-15 . https://doi.org/10.3390/ma14051226 , https://doi.org/10.3390/ma140512261996-1944researchoutputwizard: 11556/1090Publisher Copyright: © 2021 by the authors. Licensee MDPI, Basel, Switzerland.Prefabricated solutions incorporating thermal insulation are increasingly adopted as an energy conservation measure for building renovation. The InnoWEE European project developed three technologies from Construction and Demolition Waste (CDW) materials through a manufacturing process that supports the circular economy strategy of the European Union. Two of them consisted of geopolymer panels incorporated into an External Thermal Insulation Composite System (ETICS) and a ventilated façade. This study evaluates their thermal performance by means of monitoring data from three pilot case studies in Greece, Italy, and Romania, and calibrated building simulation models enabling the reliable prediction of energy savings in different climates and use scenarios. Results showed a reduction in energy demand for all demo buildings, with annual energy savings up to 25% after placing the novel insulation solutions. However, savings are highly dependent on weather conditions since the panels affect cooling and heating loads differently. Finally, a parametric assessment is performed to assess the impact of insulation thickness through an energy performance prediction and a cash flow analysis.1541207508enginfo:eu-repo/semantics/openAccessjournal article10.3390/ma14051226Building model calibrationBuilding retrofittingConstruction and demolition wasteEnergy conservation measuresGeneral Materials ScienceCondensed Matter PhysicsSDG 7 - Affordable and Clean EnergySDG 12 - Responsible Consumption and ProductionSDG 17 - Partnerships for the GoalsProject IDinfo:eu-repo/grantAgreement/EC/H2020/723916/EU/InnoWEEinfo:eu-repo/grantAgreement/EC/H2020/723916/EU/InnoWEEFunding InfoThis research was funded by the European Union’s Horizon 2020 research and innovation program under grant agreement No. 723916 (Project H2020-EEB-2016 InnoWEE, G.A. 723916). This study reflects only the authors’ views and the Commission is not responsible for any use that may be made of the information contained thereinThis research was funded by the European Union’s Horizon 2020 research and innovation program under grant agreement No. 723916 (Project H2020-EEB-2016 InnoWEE, G.A. 723916). This study reflects only the authors’ views and the Commission is not responsible for any use that may be made of the information contained thereinhttp://www.scopus.com/inward/record.url?scp=85102737522&partnerID=8YFLogxK