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.
Featured articles and news
Design and construction industry podcasts
Professional development, practice, the pandemic, platforms and podcasts. Have we missed anything?
C20 Society; Buildings at Risk List 2025
10 more buildings published with updates on the past decade of buildings featured.
Boiler Upgrade Scheme and certifications consultation
Summary of government consultation, closing 11 June 2025.
Deputy editor of AT, Tim Fraser, discusses the newly formed society with its current chair, Chris Halligan MCIAT.
Barratt Lo-E passivhaus standard homes planned enmasse
With an initial 728 Lo-E homes across two sites and many more planned for the future.
Government urged to uphold Warm Homes commitment
ECA and industry bodies write to Government concerning its 13.2 billion Warm Homes manifesto commitment.
From project managers to rising stars, sustainability pioneers and more.
Places of Worship in Britain and Ireland, 1929-1990. Book review.
The emancipation of women in art.
Call for independent National Grenfell oversight mechanism
MHCLG share findings of Building Safety Inquiry in letter to Secretary of State and Minister for Building Safety.
The Architectural Technology Awards
AT Awards now open for this the sixth decade of CIAT.
50th Golden anniversary ECA Edmundson awards
Deadline for submissions Friday 30 May 2025.
The benefits of precast, off-site foundation systems
Top ten benefits of this notable innovation.
Encouraging individuals to take action saving water at home, work, and in their communities.
Takes a community to support mental health and wellbeing
The why of becoming a Mental Health Instructor explained.
Mental health awareness week 13-18 May
The theme is communities, they can provide a sense of belonging, safety, support in hard times, and a sense purpose.
Mental health support on the rise but workers still struggling
CIOB Understanding Mental Health in the Built Environment 2025 shows.
Design and construction material libraries
Material, sample, product or detail libraries a key component of any architectural design practice.