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Building Regulations Part F: Ventilation

Welcome to the technical guidance page for Part F of the building regulations covering building ventilation.

The approved document can be downloaded below, along with the Domestic Ventilation Compliance Guide which gives guidance on design and commissioning of mechanical ventilation systems. Additional guidance is available below.

Approved Document F: Ventilation

Additional Guidance:

Domestic Ventilation Compliance Guide (2010 Edition)

BCA Guidance:

BCA Technical Guidance Note 17: Evidence of Mechanical Flow Rate Testing—Testing of Fixed Fans

BCA Technical Guidance Note 20: Ensuring adequate ventilation to naturally-ventilated dwellings with high levels of as-built air permeability