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Part E Compliance

Soundproofing Solutions to Meet New Part E Building Regulations

Custom Audio Designs carries out Part E Sound Testing. Call for Details.

INTERNAL WALLS / PARTITIONS

UNDER PART E:

  • The internal wall requirement for the new Part E Regulations is 40 RwdB.
  • An internal wall is defined as a wall between a bedroom or room containing a w.c. and other rooms.
  • There is no Part E requirement for an internal wall that contains a door.
  • Internal walls are not subject to pre-completion testing.
  • With internal wall applications there is no Ctradjusting factor required under Part E.
SOLUTION NO. APPLICATION PERFORMANCE
Type 1.1 Metal Stud 53 RwdB
Type 1.2 Timber Stud 43 RwdB

SEPARATING WALLS

UNDER PART E:

  • The separating wall requirement for the new Part E Regulations is 45 DnT,wCtrdB for New Build.
  • The separating wall requirement for the new Part E Regulations is 43 DnT,wCtrdB for Refurbishment.
  • A separating wall is defined as a wall separating one dwelling from another.
  • There is no Part E requirement for an internal wall that contains a door.
  • Internal walls are not subject to pre-completion testing.
  • With internal wall applications there is no Ctradjusting factor required under Part E.
SOLUTION NO. APPLICATION PERFORMANCE
Type 2.1 Double Metal Stud 57 RwdB+Ctr(66 RwdB)
Type 2.2 Independent Metal C Stud 53 RwdB+Ctr(58 RwdB)
Type 2.3 Double Timber Stud 52 RwdB+Ctr(62 RwdB)
Type 2.4 70mm Acoustic Stud 51 RwdB+Ctr(61 RwdB)
Type 2.5 Independent Metal C Stud 50 RwdB+Ctr(58 RwdB)
Type 2.6 70mm Acoustic Stud 49 RwdB+Ctr(61 RwdB)
Type 2.7 Timber Stud 48 RwdB+Ctr(55 RwdB)
Type 2.8 100mm Brick 48 RwdB+Ctr(56 RwdB)

SEPARATING FLOOR SYSTEMS

UNDER PART E:

  • The airborne sound requirement for separating floors under the new Part E Regulations is 45 DnT,wCtrdB for New Build.
  • The airborne sound requirement for separating floors under the new Part E Regulations is 43 DnT,wCtrdB for Refurbishment.
  • The  impact sound requirement for separating floors under the new Part E Regulations is 62 L'nT,wdB for New Build.
  • The  impact sound requirement for separating floors under the new Part E Regulations is 64 L'nT,wdB for Refurbishment
  • A separating floor is defined as a floor separating one dwelling from another.
  • Part E requirements for floors is subject to both impact and airborne regulations.
  • Separating floors are subject to pre-completion testing.
  • With separating floors the Ctradjusting factor is included under Part E.
  • With impact sound measurements remember: the lower the figure the higher the performance.
SOLUTION NO. APPLICATION PERFORMANCE
Type 3.1 Timber Joist Floor 60 RwdB+Ctr(70 RwdB)
46 LnwdB
Type 3.2 Timber Joist Floor 54 RwdB+Ctr(63 RwdB)
56 LnwdB
Type 3.3 Timber Joist Floor 54 RwdB+Ctr(62 RwdB)
54 LnwdB
Type 3.4 Timber Joist Floor 49 RwdB+Ctr(59 RwdB)
59 LnwdB
Type 3.5 Direct to Timber Joist 51 RwdB+Ctr(63 RwdB)
55 LnwdB
Type 3.6 140mm Concrete Floor 52 RwdB+Ctr(57 RwdB)
40 LnwdB
Type 3.7 140mm Concrete Floor 52 RwdB+Ctr(57 RwdB)
57 LnwdB

Type 3.12

New Direct to Joist with Current Lathe and Plaster Coming Soon

RwdB+Ctr( RwdB)
LnwdB

ROBUST STANDARD DETAILS

 

Robust details are construction solutions which provide an alternative to pre-completion sound testing as a method of complying with the Building Regulations Part E (resistance to the passage of sound).

A robust detail, for Part E of the Building Regulations, is a separating wall or floor construction which has been assessed and approved by Robust Details Limited. In order to be approved, each robust detail must:

  • be capable of consistently exceeding the performance standards given in the Building Regulations Approved Document E
  • be practical to construct on site
  • be reasonably tolerant of workmanship.
  •  

If you build using robust details, you won't have to carry out pre-completion sound testing but you do need to obtain permission from Robust Details Ltd. and pay the fee for each home. Provided that the robust details are built correctly this will be accepted by all building control bodies as evidence that the homes are exempt from pre-completion testing. On completion of each separating floor or wall the builder is required to complete a compliance certificate and pass it to their building control officer. Without this certificate the building control will not approve the construction.

SOLUTION APPLICATION EXPECTED PERFORMANCE
Board & Metal Frame Ceiling Treatment dB
Board & Timber Battens Ceiling Treatment dB
Board & Resilient Bars Ceiling Treatment dB

SOLUTION APPLICATION EXPECTED PERFORMANCE
FFT-1 Deep Batten Floor Floor Treatment Airborne: 54dB < DnTw+Ctr< 60dB
Impact:    35dB < L’nTw< 45dB
FFT-2 Cradle & Batten Floor Floor Treatment Airborne: 54dB < DnTw+Ctr< 60dB
Impact:    35dB < L’nTw< 45dB
FFT-3 Standard Batten Floor Floor Treatment Airborne: 54dB < DnTw+Ctr< 60dB
Impact:    35dB < L’nTw< 45dB
FFT-4 Platform Floor Floor Treatment Airborne: 52dB < DnTw+Ctr< 57dB
Impact:    40dB < L’nTw< 45dB
FFT-5 Shallow Platform Floor Floor Treatment Airborne: 50dB < DnTw+Ctr< 57dB
Impact:    40dB < L’nTw< 50dB
Screed Floor Floor Treatment Airborne: 50dB < DnTw+Ctr< 57dB
Impact:    40dB < L’nTw< 50dB

SOLUTION APPLICATION EXPECTED PERFORMANCE
Staggered Method Wall Services dB
Service Void Method Wall Services dB
 
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