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Excellent thermal characteristics, energy conservation, assured condensation control, easily conforms to flat or irregular surfaces — when installed properly, this duct wrap does it all. It’s tough, resilient and easy to install.

Applications

Certifications
Product Features
Energy Conservation
As the system efficiency increases, energy use and costs decrease. Offering a low "k" factor, this duct wrap significantly reduces heat gain or loss when installed properly.
ECOSE Technology
Our patented, bio-based binder is a smarter alternative to using phenol formaldehyde. It’s been foundational in our commitment to sustainability. For the world we live in.
Easy Install & Handling
Flexible, lightweight, tough and resilient. Installs fast, as it conforms easily to flat or irregular surfaces and resists damage in shipment and during and after installation.
Product Details
Technical Data
Technical Data
Property (Unit) Test Performance
Corrosiveness ASTM C665 Does not accelerate corrosion of steel 
Corrosion ASTM C1617 Pass 
Maximum Service Temperature ASTM C411 Faced: 250° F (121° C), Unfaced: 350° F (177° C)
Wator Vapor Permeance ASTM E96, Procedure A 0.02 perms or less (FSK and PSK facings)
Water Vapor Sorption (by weight) ASTM C1104 Less than 5%
Mold Growth ASTM C1338 Pass
Surface Burning Characteristics (flame spread/smoke developed) ASTM E84, UL 723, CAN/ULC S102 UL/ULC Classified FHC 25/50 (Unfaced and FSK facing)
ASTM E84 25/50 (PSK facing)
Forms Available
Forms Available
Density Thickness Width Length Facing R-Value (K Value) @ 75°F Mean Temperature
Out-Of Package Installed [at 25%
Compression]
0.75 PCF
(12 kg/m³)
 
1½" (38 mm) 48"
(1,219 mm)
100' (30.48 m) FSK,
PSK,
Unfaced
R-5.1 (0.29) R-4.2 (0.27)
2" (51 mm) 75' (22.86 m) R-6.8 (0.29) R-5.6 (0.27)
2 3⁄16" (56 mm) 75' (22.86 m) R-7.4 (0.29) R-6.0 (0.27)
3" (76 mm) 50' (15.24 m) R-10.2 (0.29) R-8.4 (0.27)
1.0 PCF
(16 kg/m³)
 
1½" (38 mm) 100' (30.48 m) R-5.6 (0.27) R-4.5 (0.25)
2" (51 mm) 75' (22.86 m) R-7.4 (0.27) R-6.0 (0.25)
1.5 PCF
(24 kg/m³)
1½" (38 mm) 75' (22.86 m) R-6.1 (0.24) R-4.8 (0.23)
2" (51 mm) 50' (15.24 m) R-8.2 (0.24) R-6.4 (0.23)
Thermal Efficiency and Application
Thermal Efficiency | ASTM C177
Mean Temperature 0.75 PCF 1.0 PCF 1.5 PCF
k k (SI) k k (SI) k k (SI)
50° F (10° C) 0.28 0.040 0.26 0.037 0.23 0.033
75° F (24° C) 0.29 0.042 0.27 0.039 0.24 0.035
100° F (38° C) 0.31 0.045 0.29 0.042 0.26 0.037
125° F (52° C) 0.33 0.048 0.31 0.045 0.28 0.040
150° F (66° C) 0.36 0.052 0.34 0.049 0.31 0.042
175° F (80° C) 0.39 0.056 0.37 0.053 0.33 0.048
200° F (93° C) 0.43 0.063 0.40 0.058 0.36 0.052

Atmosphere_duct_wrap_Thermal_efficiency_astm_c177.pngapplication.PNG
Stretch-Outs
Stretch-Outs
Labeled Thickness Installed Compressed Thickness Round Square Rectangular
1½" (38 mm) 1⅛" (29 mm) P+9½" (241 mm) P+8" (203 mm) P+7" (178 mm)
2" (51 mm) 1½" (38 mm) P+12" (305 mm) P+10" (254 mm) P+8" (203 mm)
2 3⁄16" (56 mm) 1⅝" (42 mm) P+13" (330 mm) P+11" (279 mm) P+8½" (216 mm)
3" (76 mm) 2¼" (57 mm) P+17" (432 mm) P+14½" (368 mm) P+11½" (292 mm)

P = Perimeter of duct to be installed.
Insertion Loss and Condensation Control
Insertion Loss | (Reduction of Sound Transmitted Through Duct Wall)
(Sound and Vibration Design and Analysis, National Environmental Balancing Bureau, 1994)
  Duct Wrap Insertion Loss, dB/LF of Duct
Duct Dimensions Sheet Metal Nominal Thickness Nominal Density 63Hz 125Hz 250Hz 500Hz 1000Hz 2000Hz 4000Hz
12" x 12" (305 mm x 305 mm) 24 GA 1½" (38 mm) 0.75 PCF (12 kg/m3) 0.6 0.6 0.6 0.7 7.4 14.2 20.9
24" x 12" (610 mm x 305 mm) 24 GA 1½" (38 mm) 0.6 0.6 0.6 0.7 7.4 14.2 20.9
48" x 12" (1219 mm x 305 mm) 22 GA 1½" (38 mm) 0.5 0.5 0.5 0.6 7.4 14.1 20.9
24" x 24" (610 mm x 610 mm) 22 GA 1½" (38 mm) 0.5 0.5 0.5 0.6 7.4 14.1 20.9
24" x 12" (610 mm x 305 mm) 26 GA 1½" (38 mm) 0.8 0.8 0.8 0.8 7.5 14.2 21.0
24" x 8" (610 mm x 203 mm) 26 GA 2" (51 mm) 1.0 1.0 1.0 3.6 10.4 17.1 23.9
 
Condensation Control | Recommended Min. Install R-Values For Condensation Control on Flat Surfaces.
Surface Emittance: 0.2 (Aged Aluminum Foil or Galvanized Sheet Metal)
RH Operating Temperature
45° F (7° C) Ambient Temperature (° F) 55° F (13° C) Ambient Temperature (° F) 60° F (18° C) Ambient Temperature (° F)
% 70 80 90 100 110 70 80 90 100 110 70 80 90 100 110
60 2.2¹ 3.3¹ 4.3² 4.3² 5.4³ 1.1¹ 2.2¹ 3.3¹ 3.3¹ 4.3² 1.1¹ 1.1¹ 2.2¹ 3.3¹ 4.3²
70 3.3¹ 5.4³ 6.54 7.65 1.1¹ 3.3¹ 4.3² 6.54 6.54 1.1¹ 1.1¹ 3.3¹ 5.4³ 6.54
80 7.04 3.3¹ 6.54 2.2¹ 3.3¹ 6.54
90 6.54

1All Duct Wrap products
20.75 PCF (12 kg/m³), 2" and greater; 1.0 PCF (16 kg/m³), 1½" and greater; 1.5 PCF (24 kg/m³), 1½" and greater
30.75 PCF (12 kg/m³), 2" and greater; 1.0 PCF (16 kg/m³), 2"; 1.5 PCF (24 kg/m³), 2"
40.75 PCF (12 kg/m³)
50.75 PCF (12 kg/m³), 3"
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