Environmental investment of green roofs - tools and comparisons with LCA

In order to achieve our climate goals in the future, it is important to verify that the materials and techniques used have a minimal environmental impact, both in new construction and renovation.

The aim of the project is to develop a tool that can quantify greenhouse gas emissions for green roofs upstream in the construction process, including the operational phase, in order to be able to assess environmental investment and repayment of green roofs, ie the so-called "Environmental Return of Investment".

This is a simple and clear way of showing how many years it takes for a green roof to repay itself from an environmental perspective. Based on previous research by the participating research groups, new methods and analysis tools will be jointly developed.

The result of the project will enable project managers to include climate considerations in planning and monitoring of construction Projects and provide builders and authorities with tools to set relevant environmental requirements when designing building rules and when procuring construction activities.