Atmosphere® Duct Wrap

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

HVAC

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.

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)
Water 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), 25/50 (PSK facing)

Forms Available

Forms Available
Density	Thickness	Width	Length	Facing	R-Value (K Value) @ 75°F Mean Temperature
Density	Thickness	Width	Length	Facing	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)
1.0 PCF (16 kg/m³)	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)
1.5 PCF (24 kg/m³)	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
Mean Temperature	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

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
RH	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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