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(c) 2008 Super Soundproofing Co
Using "SUPER" Soundproofing Mass
Loaded Vinyl (MLV)- Flexible Noise Barrier (FNB) material for
airborne Sound Control.
The ultimate noise barrier
for Flooring or Walls- almost as good as lead!
(Yes we have that too!)
Sound transfer through floors and ceilings is a continuing
noise control problem, especially in older buildings. There are two main issues
regarding noise transfer: airborne sound and impact noise.
Each are different and require separate soundproofing treatments. Airborne sound is
most easily dealt with. Use the MLV vinyl barrier. Impact noise
is dealt with by using "Super Seal" subfloor or
SSP-FL or Tl. Normally, you need both
impact underlayment and MLV.
A " Mass
Loaded Vinyl" barrier, (MLV), (1 Lb per Sq. Ft!),
carpet underlayment as heavy as lead that provides a soundproofing layer on the
floor and under the carpet and padding for noise control. It is a
tough, wear resistant material that may be placed on or under floating hard floors
to make them more comfortable by reducing impact while slowing noise
transfer above and below. When used as an underlayment for
hardwood floors or tile, reduces sound reflection and transfer dramatically.
Can also be used on walls and ceilings. When installed inside the
wall, more than doubles the STC. For instance, a standard hollow
sheetrock wall, with 1/2" Gypsum board on metal studs has a STC rating
of about 23. (Ordinary conversation through it can be understood). Adding
the MLV can increase it to about 53! (Loud
shouting is not heard). Just staple or glue the material to the
wall, then cover with sheetrock- tape off and paint. Want more sound
reduction? Use a double layer of MLV!
Normally used as a carpet underlayment,
one type has a foam backing, the other doesn't. The foam
backing mat is recommended under carpets as it provides a vibration cushion,
floating the barrier just off the floor. This helps reduce footfall and
impact noise. MLV without the foam cushion would be under the subfloor or in walls and ceilings or as second layer to increase sound
reduction even more.
Typically used this way: seal subfloor cracks, gaps with
acoustical caulk first. Tape
seams of the floor with metal tape.
Lay the MLV down, caulk edges and seal with metal tape. Cover
with carpet pad and carpet. If using the one with and without foam
backing
together, place the foam backed material down first. Install 90 degrees to each
other. Important! Do not skip the step of inspecting and
caulking the gaps and seams of your bare subfloor! Use metal tape on
the seams.
Click images to expand!
Combined with the "Double drywall" technique
described in the resilient channels page, it
provides the ultimate in sound reduction.
MLV may even be painted. (Clean well with
alcohol and use vinyl or latex paint).
Fast way to get superior sound control in your apartment: Buy
imitation wall paneling from the hardware store. Carefully cut to fit
your wall. (No gaps). Apply MNLV to the back of the paneling with either
contact cement or using the version with PSA. (Pressure Sensitive Adhesive).
Attach to your wall with finishing nails. Panels can be removed with a
minimum of small holes when you move! Tip: Using metal tape on
the walls at the place where the joints are will increase the sound blocking
effectiveness of your panels.
The three types
of MLV we sell are the:
GOOD: Super Soundproofing MLV: Same as
above for homes and offices, but without the foam backing. Somewhat
less expensive at $5.88 per running foot. ($1.47 per Sq. Ft). Available in 4' widths X 25' lengths: $147
or
4.5'X30' $6.60 per running ft. Roll: $198 Also available with peel-off
backing! (Eliminates the mess and odor of adhesive and is easier to install
on walls.) See the buy button.
BETTER: Super Soundproofing MLV: Useful for
vehicles, too. 1/8" thick. It has a 1/4" open cell foam bonded to the underside to
provide additional vibration isolation. $8.63 per running foot: (54" wide). ($1.92 per Sq Ft). PN
09-00004-F 25' Roll: $215.75 09-00004-1
BEST: We also have Super Soundproofing MLV- same as above but with 1/4"
closed cell foam bonded to the MLV for superior noise damping. $14.63
per running foot: (54" wide). ($3.25 per Sq Ft). PN 09-00006-F
30' Roll: $438.90 09-00006-1
Flammability: It meets certain UL requirements, but is not FAA
approved for certified aircraft. (Homebuilt OK).
Use
MLV under machinery, speakers and
health machines
for noise control into and
through the floor! You'll need at least a 3'-4' margin of Mass Loaded
Vinyl barrier around your
running machine to reduce flanking sound from penetrating down through the
floor. Special dimple Vibration pads
will help here too!
Dimple Pad: Now, a product for reducing impact noise for under hardwood and
tile floors!: SUPER-SEAL: "Sub-Floor +"
floor underlayment. At last!
A dimpled product that reduces impact noise created by walking on hardwood
or tile floors. It's just 3/8" thick, comes in rolls 6'6" wide. Just
$1.85 per sq. ft. (You'll need a combination of this and MLV too if there is an issue with airborne
noise). We have another product that combines impact and
airborne sound control in one
membrane.
Another
use we discovered is to lay panels of the "MLV" (loaded vinyl
barrier with a
foam backing), inside/above a dropped acoustical tile ceiling.
The material needs to be cut so that it overlaps each adjacent layer by a
few inches. This is done by cutting a length of the 54" wide
material long-ways into two 4'X2'3" sections. These will then cover
two 2'X4' sections of the dropped ceiling tiles with an overlap. Start
with a run of ceiling tiles in place against the walls and caulk the seam at
the wall in place using our non-hardening caulk. (See our "Prices" page).
Cut a slit in the panels with a knife or scissors to clear the suspension
wires and caulk the cut seam and the area where the wire passes
through with a heavy blob of sealant. Before starting this job,
evaluate the strength of the wires holding the ceiling up. If need be,
add wires to reinforce the suspension system. Bear in mind this mat
weighs one pound per square foot and the ceiling support wires are not
normally stressed for this kind of weight.
Things to keep in mind: Be sure to
cover the entire area, caulking gaps and seams to prevent air flow that
will carry sound. Have someone help to cut panels and hand them up.
This will make it much easier while working standing on a ladder inside the
ceiling area.. If the walls of the room do not extend up through the ceiling
to the roof, consider adding higher walls to the "stub" walls so as to
prevent flanking sound from passing through and over from the
adjoining ceiling. If using MLV on the floor, lay out the material and
leave overnight to let it flatten and to prevent billow type bubbles due to uneven
expansion.
Tips
for new construction or renovation of floors:
The subfloor is the culprit in sound transfer. Sometimes it's
not thick enough, or strong enough, (where thin subfloor panels are used over
floor joists that are spaced too widely for the thickness of
subflooring). Or where the subfloor is improperly attached with
too few fasteners or just nailed. (Use screws!) If your
floor joists are exposed, now is the time to forestall problems in the
future. As a minimum, use our green Insulation Tape
to tape the faces of the joists/subfloor joints to help prevent
squeaks and to reduce sound transfer into the joists. It comes in
1-7/16", 2" or 3" widths for this purpose. (DYI-? You don't need
the installation tool pictured above, it's for contractors. You can
apply the tape easily by hand).
Better, buy the 2' or 4' wide material
(yes, that's 2 "Feet" and 4 "Feet" wide!), similar
to "Green Glue". to cover the underside of
the entire sub-floor panel. This will add dampening to the
panel, reducing the resonant "boom" when walking on the floor. All
these tapes come with a peel off backing for easy, clean, no-mess
adhesive application.
A less expensive, more labor intensive method is to glue 1/8" or
1/4" closed cell acoustical foam to the underside of your sub-floor panels.
(Cost: About $1 per sq. ft.)
This also works well for drywall panels, too. Call about
"Mass Loaded Vinyl" barrier (MLV) Now!
There are many ways to use these sound barrier underlayment materials in combination- for
maximum results call us to help you tailor your installation for your
specific needs. 760 752 3030 8-5 PST 5 Days
Combined with the "Double drywall" technique
described in the 
