Air Tightness Testing

Plenum Testing

MSAFE - Plenum Testing

MSAFE carry out on-site testing of plenums and raised access flooring with all testing carried out in accordance with BSRIA Guide BG 65/2016 Floor Plenum Airtightness.

We can advise at the design stage and carry out design reviews and site inspections to ensure your plenums are adequately sealed to minimise air leakage and demonstrate compliance with the regulations.

Should your plenum fail an Air Tightness Test, MSAFE have significant technical expertise in identifying likely areas where leakage can occur including smoke testing and advising on appropriate cost-effective remedial work.

A floor plenum is the void between the building’s structural floor and the raised access floor and is used to provide conditioned/heated air flow to the spaces above. Energy efficiency is compromised if conditioned/heated air leaks into unheated spaces such as risers, stairwells or adjacent cavities so air tightness is important to ensure the correct air flow rates.

MSAFE will supply a test report with separate results for both the plenum and the raised access floor.

Contact MSAFE

Health and safety specialists MSAFE undertake work nationwide from our head office in Bournemouth offering Air Tightness and Leakage Testing services covering Dorset, Hampshire, Wiltshire, Bristol, Cardiff, Swansea, Devon, Cornwall, Gloucestershire, Oxfordshire and London.

To arrange a competitive fee proposal, please contact us on 0333 8000 700 or complete our enquiry form and we will contact you to discuss further.


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MSAFE are UKAS Accredited to ISO/IEC 17025:2005 for Air Tightness Testing and Sound Insulation Testing