COI,lPARTMENT
ACOUSTICAL
LINING
1
Besurealliointsand
comersollhecompartment
are vapor
trght to
coach inlerior betore lining
with
acouslical
malerial,
Linrng
lhe compadment
does litlle
if opening,
cracks,
door and
joints
are not sealed.
Also make
sure
compartment
door
edge is sealed
to
eliminate
noise-air leaks around the door
Perimeler.
2.
Coverlhe
sound
rellective
surfaces, back,
top and
sides
{nol
compartment base)
wilh
fiberglass
or
olher
noncombuslible
acoustical
material. ll
should
be no less than one
inch
thick
and
approximalely
two
pounds
per
square
fool in
densily.
Be sure adhesive
used is also noncorn-
bustible. Tesl acoustical material and
adhesive
lor heat
effects before using.
l-
wariirnc
I
rn.uranon hud nor
Flrlc. rh. mhtlnum
--l
clelr.ncer s lP.dll.d ln Flour!
I
Io
m..t
Al{Sl
190.1
Al{O CSA 1946
t.mp...lun .t- nqdlm.nt. tor
Rather
lhan using
one
single material of two
pound
per
square
foot
density,
a combination ol
materials can
reduce noise even more, Forexam-
ple,
a sheet ol
lead
orviso€lastic
materialof one-
halt to one
pound pea
square
foot density and a
layerot oneinch acoustical material of two
pound
per
square foot density, respectively, is tar more
superior.
To
paevent
line
of sight
noise, a
sound
panel
(baflle)
may be added behind louvered air inlet.
The
panel
must
be spaced to allow tor.ninrmum
free air inlet
of 120 square inches.
See
Figure
4.
3.
UATNING
S.p.rut.
ln.lall.$on
rre. or coftplrlm€nt
loh living
qo'|.r.
by r
vlpornlghl e.ll lo
noriolt lum6 lo i.l.rlor,
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