Domestic Ventilation Systems - a guide to measuring airflow rates (BG 46/2022)

Domestic Ventilation Systems - a guide to measuring airflow rates (BG 46/2022), was published by BSRIA in September 2022. It was written by Alan Gilbert & Chris Knights.

With the improvements in dwelling airtightness over the past few years, and increased use of systems such as Mechanical Ventilation with Heat Recovery (MVHR), getting the ventilation right in dwellings has become more critical.

In 2010, a requirement for mechanical ventilation air flow rate testing in dwellings was written into the England & Wales Building Regulations. A new Approved Document F Volume 1, providing guidance on meeting the Building Regulations requirements for ventilation in England, was published in 2021 and came into effect on 15th June 2022. A version for use in Wales, providing the same guidance, was published in 2022 and will come into effect on 23rd November 2022.

The third edition of BSRIA’s Domestic Ventilation Systems guide takes into account the revised guidance and also provides more detailed information about equipment calibration.

Contents include:

• Types of ventilation systems.
• Performance requirements.
• Design and installation.
• Airflow measurement – conditional, unconditional and minimum benchmark methods.
• Testing and commissioning.
• Correct calibration of instrumentation for airflow measurement.

The test work to support the methodology recommended in this guide was undertaken independently by BSRIA. Read report

The guide is available now from the BSRIA Bookshop, with free downloads for BSRIA Members.

This announcement originally appeared as 'Domestic Ventilation Systems - a guide to measuring airflow rates (BG 46/2022)' on the BSRIA News and blog site, dated September, 2022.

--BSRIA

[edit] Related articles on Designing Buildings

• Air change rates.
• Air handling unit.
• Background ventilator.
• Cross ventilation.
• Designing HVAC to resist harmful microorganisms.
• Dew point.
• Effective ventilation in buildings.
• Heat recovery ventilation.
• Humidity.
• Moisture.
• Natural ventilation.
• Passive building design.
• Stack effect.
• Whole building ventilation.