Performance of 120 selected façade materials provided by over 30 industrial and academic partners is under evaluation. The experimental data, acquired during BIO4ever project duration are used for development of the numerical models simulating the material degradation in a function of time and exposure. The weather data calculated according to the ASHRAE 2013 database allows numerical simulation of cumulative radiation and temperature on building facades, situated in 6000 locations all over the world. Dedicated algorithms simulating material deterioration by taking into account specific material characteristics, kinetic and intensity of weathering process as well as specific architectonic details are extensively tested and validated. Accurate service life prediction, service life costing and aesthetical performance models of evaluated bio-based building materials are foreseen as the most important deliverables. Software visualizing bio-materials’ performance will be dedicated for investors, architects, construction engineers, professional builders, suppliers and other relevant parties, including also final customers. It will assist architects/customers to select optimal bio-materials assuring satisfactory performance and high aesthetical valour

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