This project aims to initiate a development process which leads to design and construction concepts which are based on the service life. To this end, a new methodology for an implementable design tool is to be developed which will allow service life predictions of timber constructions. Furthermore, this tool will facilitate design and construction procedures to be based on service like considerations. This project is carried out by 10 European research partners and it is coordinated by SP Trätek/SWE. HFA coordinates one work package dedicated to wood coatings.