Knauf Rigid Plenum Liner
Description
Knauf Rigid Plenum Liner is a heavy-density fiber glass board
insulation made from inorganic glass fibers bonded by a
thermosetting resin. Its base board is amber with a black top layer
of fiber glass. A black polymer overspray is applied to the
airstream side for a smooth, tough finish.
Application
Knauf Rigid Plenum Liner is specifically designed as an
interior insulation material for heating, ventilating, and air
conditioning plenums and sheet metal ducts. It offers an optimum
combination of efficient sound absorption, low thermal
conductivity, and minimal air surface friction.
Features
- Low thermal conductivity.
- Fire-resistant, non-corrosive.
- Tough and resilient.
Benefits
- Energy conservation.
- Better temperature control.
- Lower operating costs.
- Greatly reduces noise from fans and mechanical equipment, as
well as noise from cross-talk and air movement.
- Withstands damage from normal handling and shop abuse.
- If necessary, can be cleaned in accordance with NAIMA's
“Cleaning Fibrous Glass Insulated Air Duct Systems Recommended
Practices.”
Specification Compliance
In U.S.:
- ASTM C 1071; Type II*
- ASTM D 5116
- ASTM G 21, G 22
- GREENGUARD Environmental Institute™
- California Title 24
- NFPA 90A and 90B
- State of Alaska IAQ Specifications
- State of Washington IAQ Specifications
*Replaces HH-I-545B; Type II
In Canada:
- CAN/ULC S102-M88
- CAN/CGSB 51.11-92
Technical Data
Surface Burning Characteristics
- UL/ULC listed.
- Does not exceed 25 Flame Spread, 50 Smoke Developed when tested
in accordance with ASTM E 84, CAN/ULC S102-M88, NFPA 255 and UL
723.
Temperature Range (ASTM C 411)
Air Velocity (ASTM C 1071)
- Maximum 5000 fpm (1524 mpm).
- Tested to 12,500 fpm (3810 mpm).
Water Vapor Sorption (ASTM C 1104)
Microbial Growth (ASTM C 1338, G 21, G 22)
- Does not promote or support the growth of mold, fungi, or
bacteria.
Application and Specification Guidelines
Storage
- Inside storage is recommended. Protect stored Rigid Plenum
Liner from water damage or abuse. If stored outside, stack cartons
on pallets and cover adequately to prevent moisture
infiltration.
Fabrication and Application
- Install Knauf Rigid Plenum Liner in metal duct and plenums
operating at 250°F (121°C) service temperature or less, and
velocities of 5,000 fpm (1524 mpm) or less.
- Liner shall be applied with the treated surface facing toward
the air stream.
- Mechanical fasteners shall not compress the liner more than
1/8" (3 mm), and shall be
installed perpendicular to the duct surface. All fasteners should
comply with the guidelines of NAIMA's Fibrous Glass Duct Liner
Standard.
- Adhesives that conform to ASTM C 916 shall be applied to the
sheet metal with at least 90% coverage.
- All internal duct areas designated to be lined shall be
completely covered with liner. Transverse joints shall be firmly
butted together with no gaps, and coated with adhesive. All exposed
leading edges shall be coated with adhesive.
- Mechanical fasteners shall be used to secure the rigid plenum
liner and spaced in accordance with NAIMA's Fibrous Glass Duct
Liner Standard.
- Corner joints shall be overlapped so no gaps are present. Top
pieces shall be supported by side pieces.
- All longitudinal joints shall be coated with adhesive
conforming to ASTM C 916 when air stream velocites exceed 2500 fpm
(762 mpm).
- All damaged areas to air stream surface shall be repaired with
an adhesive that conforms to ASTM C 916.
Notes
The chemical and physical properties of Knauf Rigid Plenum
Liner 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 regional office to assure information is
current.
Knauf Rigid Plenum Liner products are certified for indoor air
quality by The GREENGUARD Environmental Institute™, a global,
non-profit organization, providing the world’s leading guide to
certified low emitting interior products and building materials
through independent, indoor air quality laboratory testing.
http://www.greenguard.org/
SOUND ABSORPTION COEFFICIENTS,
1/3 OCTAVE BANDS (ASTM C 423, TYPE A
MOUNTING)
| Density |
Thickness |
125 Hz |
250 Hz |
500 Hz |
1000 Hz |
2000 Hz |
4000 Hz |
NRC |
3.0 PCF
(48 kg/m3) |
1"
(25 mm) |
.13 |
.24 |
.56 |
.83 |
.92 |
.98 |
.65 |
3.0 PCF
(48 kg/m3) |
1.5"
(38 mm) |
.19 |
.41 |
.89 |
1.02 |
1.03 |
1.04 |
.85 |
3.0 PCF
(48 kg/m3) |
2"
(51 mm) |
.33 |
.67 |
1.07 |
1.07 |
1.03 |
1.06 |
.95 |
FRICTION LOSS (INCHES OF WATER PER 100
FT.)
Air
Velocity
(FPM) |
10"
HD |
16"
HD |
24"
HD |
32"
HD |
40"
HD |
72"
HD |
100"
HD |
| 500 |
.047 |
.026 |
.016 |
.011 |
.008 |
.004 |
.003 |
| 600 |
.066 |
.037 |
.022 |
.016 |
.012 |
.006 |
.004 |
| 700 |
.088 |
.049 |
.030 |
.021 |
.016 |
.008 |
.005 |
| 800 |
.113 |
.063 |
.038 |
.027 |
.020 |
.010 |
.007 |
| 900 |
.142 |
.079 |
.048 |
.034 |
.026 |
.013 |
.008 |
| 1000 |
.173 |
.096 |
.059 |
.041 |
.031 |
.015 |
.010 |
| 2000 |
.657 |
.366 |
.222 |
.157 |
.119 |
.059 |
.040 |
| 3000 |
1.449 |
.808 |
.491 |
.345 |
.263 |
.130 |
.087 |
| 4000 |
2.548 |
1.421 |
.863 |
.607 |
.463 |
.228 |
.154 |
| 5000 |
3.954 |
2.206 |
1.339 |
.943 |
.719 |
.354 |
.239 |
THERMAL CONDUCTANCE, C AND
RESISTANCE, R (ASTM C 177)
@ 75°F (24°C)
MEAN TEMPERATURE
| Density |
Thickness |
C-Value |
C-Value (SI) |
R-Value |
R-Value (SI) |
| 3.0 PCF (48 kg/m3) |
1" (25 mm) |
.23 |
1.31 |
4.3 |
.76 |
| 3.0 PCF (48 kg/m3) |
1.5" (38 mm) |
.15 |
.85 |
6.5 |
1.15 |
| 3.0 PCF (48 kg/m3) |
2" (51 mm) |
.11 |
.62 |
8.7 |
1.53 |
STANDARD SIZES
| Density |
Thickness |
Width |
Length |
| 3.0 PCF (48 kg/m3) |
1" (25 mm) |
24" (610 mm) |
48" (1219 mm) |
| 3.0 PCF (48 kg/m3) |
1.5" (38 mm) |
24" (610 mm) |
48" (1219 mm) |
| 3.0 PCF (48 kg/m3) |
2" (51 mm) |
24" (610 mm) |
48" (1219 mm) |
MADE-TO-ORDER
SIZES
| Density |
Thickness |
Width |
Length |
|
3.0 PCF
(48 kg/m3)
|
1"
(25 mm) |
24", 48"
(610 mm, 1219 mm) |
36", 72", 96", 120"
(914, 1829, 2438, 3048 mm) |
|
3.0 PCF
(48 kg/m3)
|
1.5"
(38 mm) |
24", 48"
(610 mm, 1219 mm) |
36", 72", 96", 120"
(914, 1829, 2438, 3048 mm) |
|
3.0 PCF
(48 kg/m3)
|
2"
(51 mm) |
24", 48"
(610 mm, 1219 mm) |
36", 72", 96", 120"
(914, 1829, 2438, 3048 mm) |