1. Institute for Environment and Development STØ Flat roof case - Optiroc Finland/Fibo Exclay Eesti

2. Institute for Environment and Development STØ Purpose Get to know our products better Use the results to compare against our competitors (sales argument) The study helps to protect the environment if the results are used in the company. Support for marketing

3. Institute for Environment and Development STØ Function The function of the product is important for defining the functional unit. Following the LCA guideline, the function of the product was described as: to keep the roof watertight and insulate the construction with minimal maintenance requirements. The functional unit for this case is 1 m 2 of a main roof construction, with a 100 year life.

4. Institute for Environment and Development STØ The Flat Roof Life Cycle Concrete Vapour barrier LWA TRP lwa Water barrier (Bitumen) TRP bitumen TRP concrete Maintenance (life span 100 years) Demolition Flat main roof Eaves Ventilation Waxed paper Replace bitumen 2 times 0,094% Not included TRP to recycling TRP to landfill TRP to reuse Recycling Landfill Reuse

5. Institute for Environment and Development STØ The main ingredients of the roof

6. Institute for Environment and Development STØ Data used

7. Institute for Environment and Development STØ Results Energy consumption for the main steps in the life cycle

8. Institute for Environment and Development STØ Energy consumption for raw materials production

9. Institute for Environment and Development STØ Global Warming Potential for the main steps in the life cycle

10. Institute for Environment and Development STØ Global Warming Potential for raw materials production

11. Institute for Environment and Development STØ Eutrophication and Acidification for the main steps in the life cycle

12. Institute for Environment and Development STØ Eutrophication and Acidification for raw materials production

13. Institute for Environment and Development STØ POCP for the main steps in the life cycle

14. Institute for Environment and Development STØ POCP for raw materials production

15. Institute for Environment and Development STØ Waste production for the main steps in the life cycle