|
PROIMPACT
is a high-density reticulated
Polyethylene sheet which
is supplied in thickness
of 3/5/10 mm.
Application
Acoustic
treatment of frameworks
between floors for the
reduction of impact
noise.
Acoustic reduction
PROIMPACT
5
between a framework
of concrete flooring
blocks (25 + 5 cm) and
a 4 cm thick layer of
cement on top, finished
off with 1 cm floor
tiles gives the following
results in acoustic
reduction:
R'w (C; Ctr) |
= 52 (-1; 4) |
dB ISO 717-1 to
airborne noise
|
R' (A) |
= 51 dB(A) |
NBE
CA-88 to airborne
noise
|
|
L'n,w (Ci) |
= 58 (-4) |
dB
ISO 717-2 to impact
noise
|
L'n (A) |
= 65 dB(A) |
NBE
CA-88 to impact
noise
|
Test carried out as
per the UNE-EN-ISO 140-4:1999
in standardised "in
situ" chambers.
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