This book highlights the hidden resource costs associated with eco-roof construction and maintenance in three different climate zones: tropical, sub-tropical and temperate. It discusses the significance of system selection and the role played by user expectations in different geographic conditions, as well as the importance of maintenance, which is usually disregarded in evaluations but can be significant over the life of the system. It touches upon all major issues, ranked by their importance for achieving greater sustainability, and especially highlights those aspects that are not common knowledge. Hence it provides a practical guide for those involved in the construction industry and the general public, helping them select the optimal eco-roof for their respective project and achieve greater sustainability in the construction sector.