Global context of airtightness challenges and the TightVent Europe initiative by Peter Wouters, INIVE, Belgium
Webinar “Airtightness and ventilation perspectives in Romania“ June 21, 15:00-17:00 (Bucharest time) AGENDA 15:00 Introduction of the webinar and objectives Rémi Carrié, INIVE, Belgium 15:10 Global context of airtightness challenges and the TightVent Europe initiative Peter Wouters, INIVE, Belgium 15:25 Potential impacts of envelope and ductwork leakage Rémi Carrié, INIVE, Belgium 15:40 Exchanges with participants 15:55 Airtightness and ventilation in the Romanian regulation Ioan Dobosi, REHVA, Romania 16:15 Progess needed on ventilation and airtightness in Romania Horia Petran, INCD URBAN-INCERC, Romania 16:35 Questions & Answers 16:40 Open discussion Chairperson: Rémi Carrié, INIVE, Belgium 16:55 Conclusion – Polling 17:00 End of the webinar For more info visit http://www.tightvent.eu
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Global context of airtightness challenges and the TightVent Europe initiative by Peter Wouters, INIVE, Belgium
- 1. GLOBAL CONTEXT OF AIRTIGHTNESS CHALLENGES AND THE TIGHTVENT EUROPE INITIATIVE Peter Wouters TightVent Europe Manager INIVE EEIG Structure of the presentation Challenges for nearly-zero energy buildings What is TightVent Europe? What about ductwork airtightness? What about building airtightness? Conclusions 1
- 2. The future Example : Netherlands 2
- 3. The future BUILD Tight VENTILATE Right 3
- 4. Conclusions from Brussels June 2011 workshop It seems very useful to have international collaboration on the topic of building and ductwork airtightness The European countries have a common challenge which justifies a common platform Important to have a platform in which all stakeholders can participate Launch of TightVent Europe Website www.tightvent.eu 4
- 5. Objectives in starting up phase? • Awareness raising about the 1 importance p • Awareness raising about the 2 existing approaches • Identifying a long term action 3 plan Airtightness strategy... + 5
- 6. Funding partners Activities Publications Conferences Webinars Newsletter BUILD UP community on airtightness Website … 6
- 7. Building Airtightness Importance of building airtightness? 2006 legislation Nearly-zero building Air Infiltration Air Infiltration 10 30 70 90 “All the rest” “All the rest” Example : Flemish legislation – typical dwelling – no assessment of airtightness 7
- 8. Ductwork Airtightness What about ductwork airtightness ? 100% 0.3 1 3 9 27 81 243 90% France 80% Belgium g 70% Sweden Occurrence 60% Belgium and France: 50% About 20% of ventilation flow rate 40% Sweden was leaking away (1999) 30% 20% 10% 0% Class D Class C Class B Class A 3*Class A 9*Class A 27*Class A Plus Duct leakage data from the SAVE-DUCT project (Carrié and collaborators, 1999). 21 systems tested in Belgium, 21 in France, 69 in Sweden. 8
- 9. Impact on market… 17 Brussels Conference 9
- 10. Conclusions Building and ductwork airtightness is one of the key challenges for the future TightVent Europe has the ambition to be the meeting place for airtightness issues in close collaboration with all relevant initiatives In particular building airtightness is a complex issue since it involves nearly all stakeholders and complex liability and cost issues An ingelligent and pragmatic framework for compliance is CRUCIAL! 10