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Wavin AS+
Technical Manual
3.6. Acoustic requirements
Local ruling increasingly describe the maximum acceptable
sound level inside the living area of a building. Subsequently
such noise limitation will then have to be established in con-
tracts between the contractor and the awarding authority.
The following technical regulations contain relevant advice
and suggestions, which require a contractual agreement to
become binding.
Fig. 6: Example of areas requiring protection.
Fig. 7: Overview Noise Protection Standards and Guidelines.
Apartment B
Kitchen/Bath/Toilet
“Noisy room”
Apartment A
Kitchen/Bath/Toilet
“Noisy room”
Heating – Noisy room!
Area in need of protection / Apartment B
Area in need of protection / Apartment A
Shared floor/ceiling in residential apartment building > 410 kg/sq.m
Single-skin installation wall within domestic living quarters > 220 kg/sq.m
DIN 4109 Supplement 2:
This supplement contains instructions relating to noise levels
that lie 5 dB (A) below the values given in DIN 4109-1:20/6-07.
In accordance with DIN 4109 Supplement 2, increased levels
of sound insulation can be arranged, by agreement, to a maxi-
mum of 25 dB (A) in other areas requiring noise protection.
VDI 4100
In addition to the requirements of DIN 4109, which was adop-
ted as Noise Protection Level I (NPL I), this guideline contains
characteristic values for two additional noise protection levels
– NPL II and NPL III.
These two additional noise protection levels specify the arran-
gements for increased sound insulation.
A: DIN 4109 (minimum legal requirements)
B: DIN 4109 Supplement 2
C: VDI 4100 Noise Protection Level II
D: VDI 4100 Noise Protection Level III
