Knauf KoolDuct System
Material Safety Data
Sheets (MSDS)
Description
The Knauf KoolDuct® System is a pre-insulated, high
performance air duct system for industrial and high-end commercial
applications. The system uses a CFC-free phenolic foam board faced
on both sides with reinforced foil. Patented, specially engineered,
aluminum flanges are designed to connect the duct sections to
assure a strong, tight closure. The KoolDuct System offers
significant advantages over sheet metal ductwork. Weight, space,
installation time, installed costs, air leakage and energy
performance are just a few of these benefits. It is a complete
system which includes:
- Complete line of components and accessories for the fabrication
and installation of ductwork systems
- Professional hand tools and automatic machinery to facilitate
the fabrication of ductwork on a small, medium and large scale
- Custom training program
- Cost estimation software.
Application
The Knauf KoolDuct System is used in commercial, residential
and industrial applications. The ducting is versatile and can be
installed internally or externally, and concealed above a false
ceiling or visibly mounted. It is easily modified and repaired and
can be fabricated on-site with non-powered tools.
Features and Benefits
- The Knauf KoolDuct System offers a significant installed cost
savings over other alternative insulated sheet metal systems,
depending on the size of the ductwork and complexity of the
project.
- The KoolDuct System offers many advantages over traditional
sheet metal systems, resolving design issues such as weight, space,
installation time, and energy performance.
- All authorized contractors attend a specialized training
program to ensure that uniform quality standards are
maintained.
- All ductwork fabrication materials are supplied by Knauf
Insulation, ensuring the highest quality and consistency in your
ductwork project.
- The KoolDuct System is ideal for jobs where a non-fibrous
solution is desired. The air stream in the sealed duct flows only
on aluminum, making it ideally suited for high specification
applications.
- The patented jointing system combined with the fully sealed
duct seams produce a system that is virtually airtight and
leak-free.
- The KoolDuct Systems yield significant savings in reduced
heating and cooling loads due to the superior insulating properties
of the phenolic panel and minimal air leakage of the jointing
system.
- KoolDuct Systems can be installed flush to the slab, saving
valuable space above a suspended ceiling.
- The aluminum grip flanges of the jointing system enables quick
connection to components such as fire dampers, VCDs, attenuators,
and conventional sheet metal ductwork.
Specification Compliance
In U.S. and Canada:
- UL (C-UL) 181, Class 1 system
- DW144, Class B
- SMACNA leakage, Class 6
- NFPA 255
- California BHFTI
Technical Data
Surface Burning Characteristics
- UL (C-UL) Classified
- Does not exceed 25 Flame Spread, 50 Smoke Developed when tested
in accordance with ASTM E 84.
Thermal Resistance
- R-6.7 at 7/8" (1.2 R.S.I. at 22 mm)
- R-8.5 at 1 3/32" (1.5 R.S.I. at 28 mm)
Thermal Conductivity (both panels)
- 0.13 BTU in/hr2F at 75°F (0.18 W/mC at 10°C)
Service Temperature
Maximum Air Velocity
Internal Static Pressure
- 4" w.g. (1000 Pa) Positive (UL rating: 15" w.g. positive, 4.5"
w.g. negative)
Sound Attenuation
Microbial Growth
- Does not promote or support the growth of mold, fungi or
bacteria.
Application and Specification and Specification
The information listed below is not intended to serve as a
design or fabrication manual. For specific details on fabrication,
handling and installation, refer to the latest edition of the
“Knauf KoolDuct System Design Guide.”
General
All foam based pre-insulated ductwork specified is supplied by
Knauf Insulation, manufactured and installed by authorized
contractors of the KoolDuct System and in complete accordance with
the “Knauf KoolDuct System Design Guide.”
Knauf Insulation will support this specification with any
technical information as required and can be contacted by phone at
(800) 825-4434, ex. 8212.
Ductwork Materials
Knauf KoolDuct panels are fabricated of CFC-free phenolic foam
thermobonded on both sides to a 25 micron aluminum foil facing
reinforced with a 5 mm glass tissue mesh. The panel’s thermal
conductivity will be no greater than 0.13 BTU in/ft
2hF
at 75°F (0.018W/mC at 24°C), and the density of the phenolic foam
will not be less than 3.5 pcf (55kg/m
3) with a minimum
compressive strength of 28 psi (190kN/m
2). The panel is
supplied in dimensions of 154
3/
4"
x 47
1/
4" (3.93 m x 1.2 m). All
other components required for the fabrication of duct segments
including contact adhesive, aluminum tape, silicon sealant, self
adhesive gasket, aluminum reinforcement and flanges are to be
original, factory approved as supplied by Knauf Insulation. The
materials and system comply with the specific testing to the UL 181
Standard for air ducts.
Authorized Contractors
The contractor responsible for the fabrication and installation of
The Knauf KoolDuct System will be authorized by Knauf Insulation
and will have successfully completed Knauf Insulation’s specialized
training seminar. Fabrication of Knauf KoolDuct Ductwork All
KoolDuct duct segments are fabricated according to approved methods
as detailed in the “Knauf KoolDuct Design Guide.” All duct sizes
listed on the drawings or bill of quantities are assumed to be
internal ductwork dimensions. Rectangular duct segments are
fabricated either on site or in the workshop utilizing the V-groove
method of fabrication. External seams where two separate panels
have been joined shall be taped utilizing a soft squeegee to
achieve a permanent bond and wrinkle free appearance. Internal
seams are fully sealed with an unbroken layer of silicon. Each duct
segment will be flanged with engineered aluminum flange closures or
Tiger connectors in accordance with the “Knauf KoolDuct Design
Guide.” Duct reinforcement, if necessary, will be applied to
protect against side deformation from both positive and negative
pressure. The “Knauf KoolDuct Design Guide” can be consulted to
determine reinforcement requirements based on ductwork size and
system pressure. The design of ductwork fittings will be in
conformance with “SMACNA HVAC Duct Construction Standards” latest
edition.
Handling of Duct Segments
Care must be exercised in the handling and transport of duct
segments in order to prevent objectionable aesthetic damage to the
outer surface. Storage of duct segments shall be under cover and
all material protected from the environment. In all cases where the
duct segments are stored for prolonged periods, the open ends of
the ducts must be sealed with polythene sheet or other suitable
materials to prevent the ingress of foreign matter. Installation of
Knauf KoolDuct Systems Duct segments should only be installed by
authorized contractors of the Knauf KoolDuct System, and in
accordance with the “Knauf KoolDuct System Design Guide.” The
jointing of KoolDuct segments is accomplished utilizing the
jointing procedure outlined in the “Knauf KoolDuct System Design
Guide.” Connection to standard ductwork system components such as
fans, dampers and even GSM ducting will be accomplished by the
appropriate selection of aluminum flange. Flexible connections can
be made between the ductwork and any item that is subject to
vibration or movement. It is the responsibility of the contractor
to ensure that the ductwork system is properly and adequately
supported and that the chosen method is compatible with the
specific ductwork system. A number of support systems are outlined
in the “Knauf KoolDuct System Design Guide.” Supports on straight
runs of ductwork are positioned at centers not exceeding 13' (4000
mm) for ducts with sides up to 45" (1160 mm). Support center
distances are reduced for straight sections fabricated with
multiple short segments. Additionally, ductwork is supported at
branch connections, tee fittings and at changes of direction as
necessary. (Reference: “Knauf KoolDuct System Design Guide.”) For
larger ductwork sizes with sides greater than 45" (1160 mm), the
support spacing should not exceed 8' (2400 mm), with additional
supports for intermediate flanged connections, fittings, branch
connections and changes of direction. It is recommended that all
larger duct system supports be of the unistrut or steel channel
variety. Additionally, ductwork should be supported at all duct
accessories such as fire dampers, volume control dampers, mixing
boxes, coils, humidifiers, etc. The load of such accessories to the
ductwork will be neutralized by the accessory support. For
vertically oriented ductwork, support should be positioned to
coincide with individual floor slabs, which should be no more than
13' (4000 mm) apart
Notes
The chemical and physical properties of The Knauf KoolDuct
System represent typical average values determined in accordance
with accepted test methods. The data is subject to normal
manufacturing variations. The data is supplied as a technical
service and is subject to change without notice. References to
numerical flame spread ratings are not intended to reflect hazards
presented by these or any other materials under actual fire
conditions.
Check with your Knauf Insulation sales
representative to ensure information is current.
SOUND REDUCTION INDEX
MEASUREMENTS
|
1/3 OCTAVE BAND
CENTER
FREQUENCY (Hz)
|
SOUND REDUCTION
INDEX (dB)
|
| 100 |
8.0 |
| 125 |
10.2 |
| 160 |
11.1 |
| 200 |
7.9 |
| 250 |
11.6 |
| 315 |
12.8 |
| 400 |
12.6 |
| 500 |
12.6 |
| 630 |
15.1 |
| 800 |
15.1 |
| 1000 |
15.0 |
| 1250 |
16.2 |
| 1600 |
17.2 |
| 2000 |
19.2 |
| 2500 |
20.5 |
| 3150 |
20.7 |
FORMS
AVAILABLE
|
Thickness |
Dimensions |
Density |
R-Value |
|
7/8"
(22 mm)
|
1543/4" x 471/4"
(1.2 m x 3.93 m)
|
3.5 PCF
(60Kg/m3)
|
R-6.7
(1.2 R.S.I.)
|
|
13/32"
(28 mm)
|
1543/4" x 471/4"
(1.2 m x 3.93 m)
|
3.5 PCF
(60Kg/m3)
|
R-8.5
(1.5 R.S.I.)
|