- The document discusses retrofitting existing homes to reduce CO2 emissions by 80% through improved insulation, airtightness, ventilation, heating and more. - UK policy aims to retrofit 12,600 homes per week to meet an 80% reduction in emissions by 2050 to address climate change. - The document presents a case study of a retrofitted home in Belfast that achieved an 80% reduction in emissions through innovations like roof cassettes, mixed-mode ventilation, insulation and monitoring systems.

2. Enterprise, innovation and education...
• 30 years in engineering
• Founded Eco-Energy (NI) Ltd 2006
• MSc thesis at UUJ - Retrofitting existing dwellings to reduce
CO2 by 80%
• Technology Strategy Board Retrofit for the Future
• PhD research student at UUJ - Establishing a hierarchy of
retrofit solutions

3. UK Retrofit driver
• 2008 Climate Change Act - legally binding target of an 80%
reduction in carbon dioxide (CO2) emissions and five other
greenhouse gases by 2050
• To meet target - 12,600 UK whole-house 80% retrofits per
week until 2050
• UK market £200bn - £600bn over next 40 years

4. Belfast project house
Pre retrofit Post retrofit

5. Retrofit design guidance

6. Why retrofit?

7. PHPP Sensitivity analysis

8. LZC CO2 reduction

9. Insulation levels

10. Induced structural decay

11. Roof cassette assembly

12. Airtightness - 0.3 ach

13. Mixed mode ventilation

14. Clothes drying cabinet

15. Space heating and DHW

16. Controls and interlocks

17. Daylighting

18. Monitoring

19. Solid wall temp/moisture
monitoring

20. Indoor climate

21. Energy costs

22. Process flow

23. Retrofit hierarchy

24. First ACTIVE HOUSE retrofit
in Europe