Published: July 2025

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Ventilation of Circulation Areas in Passivhaus Buildings

This technical guidance from the UK Certifiers Circle provides essential advice on the ventilation of circulation areas – such as corridors and stairwells – in Passivhaus buildings. The document explains the relevant Passivhaus criteria, and presents a range of compliant ventilation strategies – from whole-building cascade systems and dedicated MVHR units to mechanical extract and natural ventilation – highlighting their pros, cons, and implications for energy modelling in PHPP.

MVHR Maintenance