Floor Plenum Airtightness – Guidance and Testing Methodology (superseded) (BG 65/2016

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This guide has been superseded by BTS 4/2024 Airtightness Testing of Raised Access Plenum Floors

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Overview

This guide has been superseded by BTS 4/2024 Airtightness Testing of Raised Access Plenum Floors

A floor plenum is a void between a building’s floor structure and a raised access floor, used for distributing conditioned air to the spaces above. It is important that conditioned air in a floor plenum flows into the occupied zone and does not leak into cavities, risers, stairwells, heating trenches or other adjacent zones. A properly sealed floor plenum will allow the diffusers and grilles to fulfil their primary role of delivering air at the correct flow rate. The airtightness of floor plenums can be a serious energy efficiency issue.

This BSRIA guide addresses these issues and places upper limits on the air leakage of floor plenums. There are two components to this leakage: plenum leakage and raised access floor leakage. A testing methodology for both plenum leakage and raised access floor leakage is given, and guidance on achieving both is provided.

Revision History:

Withdrawn: BG 12/2010 Floor Void Airtightness – Air Leakage Specification

Superseded: BG 65/2016 Floor Plenum Airtightness – Guidance and Testing Methodology

Current: BTS 4/2024 Airtightness Testing of Raised Access Plenum Floors

Product details

  • Published: July 2016
  • Publisher: BSRIA
  • Author: Tom Jones
  • IBSN: 978-0-86022-753-3