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Part E Building Regulations

Building Regulations

The Sound Solution can provide help and advice for conversions and new build projects that have to meet current Part E Building Regulations. Part E requires properties that have been converted (material change of use) and new builds to meet certain acoustic requirements. 

  • Resistance to the passage of sound Part E 2010
    • Protection against sound from other parts of the building and adjoining buildings
    • Protection against sound within a dwelling-house etc

Residential dwellings have to ensure the separating walls and floors and internal partition walls within dwellings have to meet the required sound insulation values outlined in the table below. The construction requirements for the walls and floors outlined in the Part E document can be used as a guide for construction methods. The Sound Solution can offer tried and tested materials and systems that can be used in these areas to ensure they meet the required standards.

Part E Separating Floors

Soundproofing a floor to meet the Part E regulations can be achieved using one of our range of Noisedeck floating floors. Soundproof timber and concrete floor constructions using one of the Noisedeck boards. We supply three types of board which can be used to reduce the sound transmission through floors for new build and conversion projects.

  • Timber floor construction - Ceilings should be insulated with 100/45kg/m³ DFM insulation, soundbreaker bars attached to the ceiling and two layers of plasterboard hung from the bars.
  • Concrete floor construction - Ceiling should be one layer of plasterboard hung from a 75mm metal frame with void

If you would like help and advice or for a quotation for any of these systems please contact us call 08451 306269.

Download Part ‘E’ Document

Approved Document E ‘Resistance to the Passage of Sound’ 2003 edition

Approved Document E ‘Resistance to the Passage of Sound’ 2003 edition plus amendments 2004 (ADE2003), stipulates single figure sound insulation ratings for both airborne radiated noise, at separating Part E floors and walls, and for impact radiated noise at Part E floors.

Whilst the regulations are divided into 4 categories, E1 to E4, the only requirement for pre-completion testing is to prove compliance with regulation E1. Regulation E1 concerns itself with protection against sound from other parts of the same building and adjoining buildings and is relevant to separating walls and floors between dwelling houses, flats and rooms for residential purposes.

The ADE2003 requires at least 1 set of tests to be carried out for every group of up to ten dwelling-houses, flats or rooms for residential purposes, whether a material change of use or a new build. Pre-completion testing is not normally required at existing walls or floors in a building subject to material change of use, neither is usual to test across walls between kitchens and/or bathrooms. Room volumes of less than 25m³ would not normally be included in a testing programme.

Acoustic Testing

Tests in Dwelling Houses – One set of tests comprising two individual (airborne) sound insulation tests each across separating Part E walls at a pair of living rooms and a pair of bedrooms Tests in Flats with separating floors – One set of tests comprising four individual sound insulation tests, 2 airborne and 2 impact, 1 of each being across separating Part E floors between a pair of living rooms and a pair of bedrooms.

Tests in Flats with separating walls and floors – One set of tests should comprise six individual sound insulation tests. 4 airborne and 2 impact as a combination of the tests stipulated above.

Where layouts do not permit full testing as outlined above, e.g. only 1 pair of rooms in adjacent flats, then the number of airborne and impact sound insulation tests may be reduced accordingly. New build developments and developments which form a material change of use of the building have different performance standards which must be achieved. These are tabulated below:-

Table 3.1 Dwelling Houses and Flats – Performance Standards for separating walls, floors and stairs that have a separating function.
  Value in dBDwellings formed by material change of use
Walls, floors and stairs Airborne Sound Insulation DnT,w + Ctr (Minimum value) 45 dB 43 dB
Floors and Stairs Impact Sound Insulation L'nT,w (Maximum values) 62 dB 64 dB
Table 3.2 Rooms for Residential Purposes – Performance Standards for separating walls, floors and stairs that have a separating function.
  New BuildDwellings formed by material change of use
Walls, floors and stairs Airborne Sound Insulation DnT,w + Ctr (Minimum value) 45 dB 43 dB
Floors and Stairs Impact Sound Insulation L'nT,w (Maximum values) 62 dB 64 dB
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