Contents:

• Foreword
• The Observatoire BBC examines airtightness
• Interlaboratory tests for the assessment of repeatability and reproducibility of building airtightness measurement
• How to benefit from someone else’s research efforts?
• AIVC Contributed Report 14 produced in collaboration with TightVent
• TightVent sets up a European airtightness association committee
• The 2012 AIVCTightVent conference, 10-11 October 2012, Copenhagen