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Some applications may require a much greater level of noise
reduction than what is offered by a Standard "S"
WhisperRoom. To accommodate this, Standard units have been
pre-configured to allow for the installation of a full set of secondary
isolation components. These secondary component packages are
referred to as Isolation Enhancement Packages (IEP). A Standard
model with an IEP is referred to as an Enhanced "E"
model.
EXAMPLE: MDL 4242S + IEP 4242 = MDL 4242E
Click here to see a STANDARD to ENHANCED comparison diagram.
An IEP is available for each Standard model and can be
installed at any time. If desired, a unit can be purchased as a
Standard model and later upgraded to an Enhanced model by adding
the appropriate IEP. Each IEP package consist of secondary floor, ceiling,
door, doorjamb and wall systems. An Enhanced WhisperRoom is effectively two
isolation enclosures in one.
IEP CONSTRUCTION
As with Standard WhisperRoom components, the barrier portion
of IEP wall, ceiling and door components is constructed
of Medium Density Fiberboard (MDF), completely wrapped with a durable 1/8 inch thick,
cloth type material. The barrier weight is 3.25 pounds per square foot (Lbs/sqft).
NOTE: MDF is a premium manufactured wood product designed
to exhibit a high level of consistency and mass throughout and should
not be confused with lower grade, less consistent products such as
oriented strand
board (OSB), particle board or wafer board.
The WALLS of an Enhanced unit consists of two layers of
barrier and are 5 1/4 inches thick: 1" thick barrier, 1 1/4"
thick air/foam, 1" thick barrier, and 2" thick acoustical foam.
The weight is 6.5 Lbs/sqft (3.25 Lbs/sqft Standard wall and 3.25
Lbs/sqft IEP wall). The Standard and IEP wall structures are separated from
one another with rubber vibration isolator pads. These pads provide an air
buffer and minimize rigid contact between the two wall systems.
The CEILING of an Enhanced unit consists of two layers of
barrier and is 3 inches thick: 2" thick Standard ceiling (1"
barrier and 1" of preattached acoustical foam) and 1" thick IEP
ceiling barrier. The weight is 6.75 Lbs/sqft (3.5 Lbs/sqft
Standard ceiling and 3.25 Lbs/sqft IEP ceiling).
The FLOOR of an Enhanced unit consists of two layers of
barrier and is 1 5/16 inches thick: 1" thick Standard floor barrier
and a 5/16" thick IEP floor which consists of a layer of DURACOUSTIC Sound
Control Underlayment. This underlayment is made of reinforced rubber (recycled)
matting with an open cell structure designed to enhance its sound deadening
properties.
The total weight of an enhanced floor is 3.85 Lbs/sqft (3.25 Lbs/sqft Standard floor and .6
Lb/sqft IEP floor). NOTE: An additional 1" thick, 3.25 Lbs/sqft
of barrier can be added by the installation of the optional Caster Plate.
This would equate to 2 5/16" overall thickness and 7.1 Lbs/sqft of barrier.
The DOOR of an Enhanced unit consists of two layers of
barrier and is 3 inches thick: 2" thick Standard door (1"
barrier and 1" of preattached acoustical foam) and 1" thick IEP
door barrier. The weight is 6.75 Lbs/sqft (3.5 Lbs/sqft Standard door and
3.25 Lbs/sqft IEP door). The Standard and IEP doors are separated from one
another with rubber washers. These washers provide an air buffer and
minimize rigid contact between the two doors.
The WINDOWS of an Enhanced unit consists of four panes of
laminated safety glass and are 3 1/8 inches thick: 3/4" thick
(1/4" glass / 1/4" air / 1/4" glass) Standard window unit and
3/4" thick (1/4" glass / 1/4" air / 1/4" glass) IEP
window unit separated by a 1 5/8" air buffer. The weight is 10 Lbs/sqft
(5 Lbs/sqft Standard window unit and 5 Lbs/sqft IEP window unit).
There is no rigid contact between the Standard and IEP window units. This
minimizes noise transfer.
NOTE: See specifications chart for metric values.
IEP INSTALLATION
Standard WhisperRooms are designed so that the appropriate IEP
can be easily and quickly installed using existing hardware. In
fact, all components, except the IEP floor, can be installed
after the standard unit has been fully assembled. As with
standard floors and optional caster plates, IEP floor components
must be installed prior to the installation of wall and ceiling
components. In certain situations where the level
of noise reduction required is unclear, some customers choose to
purchase and install the IEP floor with a Standard WhisperRoom unit.
This prevents the need for disassembly/reassembly of the Standard unit to
install the full IEP at a later date.
IEP floor and ceiling components mount to the exterior of the
standard unit and increase the overall height by approximately 1 3/8
inches. IEP wall system components are positioned on the interior of Standard wall
system components. Once installed, the overall interior dimensions are reduced by
2 1/4 inches (1" barrier / 1 1/4" air buffer) in each direction.
Interior dimensions are reduced by 4 1/2 inches in width and depth.
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