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
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
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