Part E - Resistance to the Passage of Sound

Noise control in buildings for residential use in England and Wales is regulated using Approved Document E. This Building Regulation now applies to any kind of building used as a dwelling, including houses and apartments; and rooms for residential purposes, such as students and nurses accommodation, nursing homes and hotels. It also applies to dwellings that have been created as a result of a conversion or material change of use.

The aim of the regulation is to protect residents from the noise of activities in other rooms or adjoining properties. This has been highlighted as a major cause of tension between residents. The acoustic requirements are shown below in tables 1.1a & 1.1b:-

Table 1.1a: Dwelling-houses and flats - performance standards for separating floors, stairs and walls that have a separating function.

  Airborne sound insulation
DnT,w + Ctr dB
(Minimum Values)
Impact sound insulation
L'nTw dB
(Maximum Values)
Purpose built dwelling-houses or flats    
Floors and Stairs 45 62
Walls 45 -
Dwelling-houses or flats formed by material change of use    
Floors and stairs 43 64
Walls 43 -

 

Table 1.1b: Rooms for residential purposes - performance standards for separating floors, stairs and walls that have a separating function.

  Airborne sound insulation
DnT,w + Ctr dB
(Minimum Values)
Impact sound insulation
LnTw dB
(Maximum Values)
Purpose built rooms for residential purposes    
Floors and Stairs 45 62
Walls 43 -
Rooms for residential purposes formed by material change of use    
Floors and stairs 43 64
Walls 43 -

 

In addition to these targets, separating structure within a dwelling must also meet or exceed the following targets as set out in the table 1.1c it is anticipated that these standards should improve the level of privacy within a dwelling.

 

Table 1.1 c: laboratory values for new internal floors within: dwelling-houses, flats and rooms for residential purposes, whether purpose built or formed by material change of use.

  Airborne sound insulation
Rw dB
(Minimum Values) 
Floors 40 
Walls 40 

Please click below for our Approved Document E Specification generator:

Specification Generator

SRS have developed a simple & easy to use specification generator to help you find the best acoustic solution for your build. Find your perfect acoustic product now.

Walls & Partitions Floors & Ceilings

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New Build Conversion

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Seperating wall Internal wall

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New Brick/Block New Timber/Metal Stud Maxi HP Partition Other

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Maxiboard on resilient bars

Acoustic Performance: DnT,w: 52dB | DnT,w+Ctr: 47dB
Fire Rating: n/a
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Maxiboard Timber Stud detail1

Acoustic Performance: DnT,w: 54dB | DnT,w+Ctr: 45dB
Fire Rating: n/a
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Maxi HP Partition

Acoustic Performance: DnT,w: 58dB | DnT,w+Ctr: 51dB
Fire Rating: 1 Hr Fire Resistance
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For suitable constructions for internal wall which meet requirement E2 please see section 5 of Building Regulations Approved Document 'E'.

You just selected Conversion. Now please select your wall structure

Existing Brick/Block New Timber/Metal Stud Maxi HP Partition Other

Our solution:

Maxiboard on resilient bars1

Acoustic Performance: DnT,w: 52dB | DnT,w+Ctr: 47dB
Fire Rating: n/a
Comments: If the wall is uneven and has become porous SRS recommend that it may be beneficial to add a 12.5mm sand/cement render prior to lining with Maxiboard as per our instructions.
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Maxiboard Timber Stud detail1

Acoustic Performance: DnT,w: 54dB | DnT,w+Ctr: 45dB
Fire Rating: n/a
Comments: Prior to installing the Maxiboard it is necessary to remove one side of the partition linings. If the other side of the stud is a single layer of plasterboard then SRS recommend a second layer is added.
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Maxi HP partition

Acoustic Performance: PartitionDnT,w: 58dB | DnT,w+Ctr: 51dB
Fire Rating: 1 hour fire resistance
Comments: Maxi High Performance partitioning system offers 1 hour fire resistance and compliance with Part 'E' with minimal thickness.
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Please contact the SRS technical department for expert advice:

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Email: info@soundreduction.co.uk

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You just selected Floors & Ceilings. Now please select your build type

New Build Conversion

You just selected New Build. Now please select your floor type

Seperating floor Internal floor

You just selected Seperating floor. Now please select your proposed floor structure

Beam & block Timber joists Other

Our solution:

Please contact the SRS technical department for expert advice:

Telephone: 01204 380074

Email: info@soundreduction.co.uk

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Our solution:

Maxi 30 Beam and Block Spec1

Acoustic Performance: DnT,w: 51dB | DnT,w+Ctr: 47dB | L'nT,w: 52dB
Fire Rating: 1 Hr Fire Resistance
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Our solution:

Maxi 60 Ceiling with Acoustilay 8

Acoustic Performance: DnT,w: 58dB | DnT,w+Ctr: 52dB | L'nT,w: 30dB5
Fire Rating: 1 Hr Fire Resistance
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Our solution:

Acoustilay 15 over resiliently mounted plasterboard ceiling (20kg/m2 min)

Acoustic Performance: DnT,w: 57dB | DnT,w+Ctr: 51dB | L'nT,w: 48dB4
Fire Rating: 1 Hr Fire Resistance3
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Our solution:

Maxideck over resiliently mounted plasterboard ceiling (20kg/m2 min)

Acoustic Performance: DnT,w: 60dB | DnT,w+Ctr: 52dB | L'nT,w: 52dB
Fire Rating: 1 Hr Fire Resistance3
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SRS Total Party Floor Solution (SubPrimo + laminate floor + Maxi 60) SOLUTION HERE

SRS Total Party Floor Solution (SubPrimo + laminate floor + Maxi 60) DnT,w: 60dB | DnT,w+Ctr: 54dB | L'nT,w: 49dB
Fire Rating: 1 Hr Fire Resistance
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For suitable constructions for internal floors which meet requirement E2 please see section 5 of Building Regulations Approved Document 'E'. SRS floor and ceiling products can be used for improved comfort within the home.

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You just selected Conversion. Now please select your type of floor

Seperating floor

You just selected Seperating floor. Now please select your existing floor structure

Timber Other

Our solution:

Please contact the SRS technical department for expert advice:

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Email: info@soundreduction.co.uk

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You just selected 12.5mm Plasterboard. Do you wish to retain the ceiling?

Yes No

Our solution:

Maxi Dropped Ceiling1

Acoustic Performance: DnT,w: 56dB | DnT,w+Ctr: 48dB | L'nT,w: 56dB
Fire Rating: 1 Hr Fire Resistance3
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Our solution:

Maxi Dropped Ceiling1

Maxi 60 Ceiling1 DnT,w: 53dB | DnT,w+Ctr: 48dB | L'nT,w: 57dB
Fire Rating: 1 Hr Fire Resistance
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You just selected Lath and Plaster Ceiling. Do you wish to retain the ceiling?

Yes No

Our solution:

Acoustilay 15

Maxi 60 Ceiling1 DnT,w: 52dB | DnT,w+Ctr: 45dB | L'nT,w: 57dB4
Fire Rating: 1 Hr Fire Resistance2
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Our solution:

Maxi Dropped Ceiling*

Maxi 60 Ceiling1 DnT,w: 53dB | DnT,w+Ctr: 48dB | L'nT,w: 57dB
Fire Rating: 1 Hr Fire Resistance
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You just selected 25mm fire rated plasterboard, minimum mass 20kg/m², off resilient bars. Do you wish to retain the ceiling? 35

Yes No

Our solution:

Acoustilay 15 36

Acoustic Performance: 36 DnT,w: 57dB | DnT,w+Ctr: 51dB | L'nT,w: 48dB
Fire Rating: 1 Hr Fire Resistance3
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Our solution:

Maxi 60 Ceiling1 37

Acoustic Performance DnT,w: 53dB | DnT,w+Ctr: 48dB | L'nT,w: 57dB
Fire Rating: 1 Hr Fire Resistance
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You just selected 25mm fire rated plasterboard, minimum mass 20kg/m². Do you wish to retain the ceiling? 38

Yes No

Our solution:

Maxi Dropped Ceiling1

Acoustic Performance DnT,w: 56dB | DnT,w+Ctr: 48dB | L'nT,w: 56dB
Fire Rating: 1 Hr Fire Resistance3
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Our solution:

Maxi 60 Ceiling1 40

Acoustic Performance DnT,w: 53dB | DnT,w+Ctr: 48dB |L'nT,w: 57dB
Fire Rating: 1 Hr Fire Resistance
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You just selected no ceiling. Please select your SRS Solution

Acoustilay 15 above resilently fixed plasterboard ceiling Maxi 60 Ceiling1

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Acoustilay 42

Acoustic Performance: 15DnT,w: 57dB | DnT,w+Ctr: 51dB | L'nT,w: 48dB
Fire Rating: 1 Hr Fire Resistance3
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Our solution:

Maxi 60 Ceiling1 43

Acoustic Performance: DnT,w: 53dB | DnT,w+Ctr: 48dB | L'nT,w: 57dB
Fire Rating: 1 Hr Fire Resistance
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Maxideck 44

Acoustic Performance: DnT,w: 60dB | DnT,w+Ctr: 52dB | L'nT,w: 52dB
Fire Rating: 1 Hr Fire Resistance3
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You just selected 25mm fire rated plasterboard, minimum mass 20kg/m², off resilient bars. Do you wish to retain the ceiling?

Acoustilay 15 Maxideck

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