Backing Type Backing Type |
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 | Plain |
For Use On For Use On | Show |
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For Use On For Use On | Hide |
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Insulation Type Insulation Type |
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 | Sheet/Strip |
Material Material |
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Maximum Temperature Maximum Temperature |
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Facing Material Facing Material |
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Minimum Temperature Minimum Temperature |
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Density Density |
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Specifications Met Specifications Met |
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Heat Flow Rate Heat Flow Rate |
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Backing Color Backing Color |
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 | Silver |
Backing Material Backing Material |
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Minimum Facing Temperature Minimum Facing Temperature |
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About Selecting Thermal Insulation
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Rigid Fiberglass Duct Insulation Sheets
- Temperature Range: 0° to 450° F
- Facing Temperature Range: 0° to 150° F
- Heat Flow Rate: 0.23 Btu @ 75° F
- Density: See table
- Color: Yellow
- Facing Color:
Foil Facing: Silver;
Kraft Paper Facing: White - Specifications Met: ASTM E84 25/50 for Flame and Smoke
Insulate rectangular ductwork.
Sheets with foil facing reflect heat. The foil facing is also known as foil scrim kraft (FSK). Seal with reinforced HVAC tape (sold separately).
To seal sheets with kraft paper facing, use reinforced insulation tape (sold separately).
Sheets with Foil Facing | Sheets with Kraft Paper Facing | |||||||
|---|---|---|---|---|---|---|---|---|
| Thick. | Wd. | Lg., ft. | R Value | Flexibility | Each | Each | ||
3 lbs./cu. ft. Density | ||||||||
| 1" | 24" | 4 | 4.3 | Rigid | 000000 | 000000 | 000000 | 000000 |
| 1 1/2" | 24" | 4 | 6.5 | Rigid | 000000 | 00000 | 000000 | 00000 |
| 2" | 24" | 4 | 8.7 | Rigid | 000000 | 00000 | 000000 | 00000 |
6 lbs./cu. ft. Density | ||||||||
| 1" | 24" | 4 | 4.3 | Rigid | 000000 | 00000 | 000000 | 00000 |
| 1 1/2" | 24" | 4 | 6.5 | Rigid | 000000 | 00000 | 000000 | 00000 |
| 2" | 24" | 4 | 8.7 | Rigid | 000000 | 00000 | 000000 | 00000 |
Flexible Fiberglass Duct Insulation Sheets
Wrap rectangular and round ductwork with this flexible insulation. Seal with reinforced HVAC tape (not included).
Sheets with foil facing reflect heat. The foil facing is also known as foil scrim kraft (FSK).
Sheets with vinyl facing are tear resistant.
- Temperature Range: 0° to 250° F
- Heat Flow Rate: 0.26 Btu @ 75° F
- Color: Brown
- Facing Color: Silver
- Specifications Met: ASTM E84 25/50 for Flame and Smoke
| Thick. | R Value | Flexibility | Each | |
10 ft. × 48" | ||||
|---|---|---|---|---|
| 1 1/2" | 4.5 | Flexible | 0000000 | 000000 |
| 1 1/2" | 4.8 | Flexible | 0000000 | 00000 |
| 1 1/2" | 5 | Flexible | 000000 | 00000 |
| 2" | 5.6 | Flexible | 0000000 | 00000 |
| 2" | 6 | Flexible | 0000000 | 00000 |
| 2" | 6.4 | Flexible | 0000000 | 00000 |
| 2 3/16" | 6 | Flexible | 0000000 | 00000 |
| 3" | 8.4 | Flexible | 0000000 | 00000 |
50 ft. × 48" | ||||
| 2" | 6.4 | Flexible | 0000000 | 000000 |
| 3" | 8.4 | Flexible | 0000000 | 000000 |
75 ft. × 48" | ||||
| 1 1/2" | 4.8 | Flexible | 0000000 | 000000 |
| 2" | 5.6 | Flexible | 0000000 | 000000 |
| 2" | 6 | Flexible | 0000000 | 000000 |
| 2 3/16" | 6 | Flexible | 0000000 | 000000 |
100 ft. × 48" | ||||
| 1 1/2" | 4.5 | Flexible | 0000000 | 000000 |
| 1 1/2" | 5 | Flexible | 000000 | 000000 |
| Reinforced HVAC Tape | 00000000 | Each | 00000 |
Heat-Reflecting Air Bubble Duct Insulation Sheets
- Temperature Range: -60° to 180° F
- Heat Flow Rate: Not Rated
- Density: Not Rated
- Color: Silver
- Specifications Met: ASTM E84 20/30 for Flame and Smoke
Typically used as duct wrap, these flexible sheets consist of polyethylene bubbles covered with aluminum polyester foil that prevent 96% of heat from radiating into or away from duct. Use on rectangular and round ductwork.
| Wd. | R Value | Flexibility | Each | |
25 ft. Lg. | ||||
|---|---|---|---|---|
5/16" Thick. | ||||
| 24" | 4.2 | Flexible | 0000000 | 000000 |
| 36" | 4.2 | Flexible | 0000000 | 00000 |
| 48" | 4.2 | Flexible | 0000000 | 00000 |
50 ft. Lg. | ||||
5/16" Thick. | ||||
| 24" | 4.2 | Flexible | 0000000 | 00000 |
| 36" | 4.2 | Flexible | 0000000 | 00000 |
| 48" | 4.2 | Flexible | 0000000 | 000000 |
75 ft. Lg. | ||||
5/16" Thick. | ||||
| 24" | 4.2 | Flexible | 0000000 | 00000 |
| 36" | 4.2 | Flexible | 0000000 | 000000 |
| 48" | 4.2 | Flexible | 0000000 | 000000 |
100 ft. Lg. | ||||
5/16" Thick. | ||||
| 24" | 4.2 | Flexible | 0000000 | 000000 |
| 36" | 4.2 | Flexible | 0000000 | 000000 |
| 48" | 4.2 | Flexible | 0000000 | 000000 |
Spacers installed between the duct and air bubble insulation sheet increase the R-value to 6. One spacer roll covers approximately 10 ft. of 8" duct.
| Thick. | Wd. | Lg., ft. | Each | |
| 5/16" | 2" | 25 | 0000000 | 00000 |