England & Wales Building Regulations: Part E resistance to the passage of sound - A summary of pre-completion testing and the robust detail scheme (Version 1)

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Designing and installing acoustic separating walls and floors between residences to the requirements in Approved Document E (ADE) can prove to be quite taxing.

Prior to revision of ADE in 2003, on-site testing was not frequently used to prove the acoustic performance of separating elements - but where tests were conducted, they demonstrated that on average as-built performance often fell short of the stated requirements. From this it was logically concluded that a more effective method of demonstrating compliance was required. The 2003 edition of ADE required, therefore, that sampled on site testing be used for each new or refurbished development involving houses, flats or rooms for residential purposes.

This Construction Briefing seeks to explain in further detail this particular matter of proving the acoustic performance of acoustic separating elements (essentially party walls and floors) in houses, flats and rooms for residential purposes. The broad purposes and requirements of ADE are summarised in the accompanying Construction Briefing: England & Wales Building Regulations: Part E resistance to the passage of sound - A summary of the amendments


  • Key definitions
  • General summary of the on-site acoustic testing requirements
  • PCT procedures
    • General
    • Timing
    • Responsibility
    • Calculating how many tests are required
    • Action following failure
  • RDL scheme procedures
    • General
    • Approval and auditing of a new detail
    • Key stages for the contractor
  • Comparison of PCT vs RDL
  • Code for Sustainable Homes (CSH)

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