In the first period of WINTHERWAX project there was a lot of technical work performed to prepare everything for successful implementation of tests. 5 test cubes with installed 3 windows, 1 door and more than 300 façade elements were developed, produced and sent to final locations in Slovenia, Germany, Sweden and Spain. Prototype chamber for accelerated ageing tests was developed and built to simulate the lifetime of exposed windows and façade elements of several years. Almost nine thousand specimens were additionally prepared for tests in controlled conditions to analyse correlations between results of laboratory and field tests. Results of several different tests showed that WINTHERWAX material exhibits 9-times longer life time compared to normal spruce and carbon footprint of WINTHERWAX windows is 20 % lower compared to the same window coated with synthetic coating. Beside extensive technical work there was a lot of dissemination and communication activities performed. WINTHERWAX project and products were presented at 13 international fairs, 32 conferences and public events, in 13 scientific papers, 21 other articles, 6 interviews and received 6 awards. 2 trademarks were additionally registered namely WINTHERWAX® (windows made of Silvapro® thermally modified spruce coated with Silvacera® wax) and Silvacera® (naturally based wax). Plan for even more extensive dissemination to implement WINTHERWAX products on the market after the end of the project was also made.