Why measure air permeability?
Limiting air infiltration in buildings (regulatory aspects)
Practical sheet REF: FIC1793 V1
Why measure air permeability?
Limiting air infiltration in buildings (regulatory aspects)

Author : Nacer NASRI

Publication date: June 10, 2024 | Lire en français

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1. Why measure air permeability?

To qualify for RT2012 certification or a label (BBC Effinergie, Passiv'Haus...), a building must meet certain criteria, including Q4Pa-surf, the envelope air permeability indicator.

This indicator is measured by a Qualibat 8711 qualified technician in accordance with standard NF EN ISO 9972 and its Guide d’application FD P50-784 .

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