F&L Johns Manville Duct Insulation Panel 24" x 24" – HVAC Thermal Fiberglass Insulation for Sheet Metal Duct Systems R4, R6 & R8 Ductboard (1-1/2in x 24in x 24in)
Ensure optimal thermal performance in your HVAC systems with the F&L Johns Manville Duct Insulation Panel, a premium high-density fiberglass board designed specifically for use with sheet metal ductwork in commercial, residential, and industrial applications. Available in multiple thickness options (1", 1.5", 2") with a 3 lb density and an approximate R-value of 6.5, this insulation panel provides excellent resistance to heat loss, noise transmission, and condensation. The durable foil scrim kraft facing adds strength, resists tearing, and enhances moisture control, while the unfaced side allows for flexible installation across a wide range of systems. Engineered for performance, it is rated for service temperatures from -32°F to 450°F and meets key industry standards including ASTM C612, UL723, MIL-I-24244C, and NFPA255, ensuring code compliance and long-lasting reliability. Proudly made in the USA, the F&L Johns Manville duct insulation panel is a trusted solution for improving energy efficiency, indoor air quality, and acoustic comfort in demanding HVAC builds.
- ✅ High Thermal Performance – Approx. R-Value of 6.5 helps reduce heat loss in duct systems
- ✅ Durable Fiberglass Construction – 3 lb density panel provides lasting strength and support for rigid applications.
- ✅ Foil Scrim Kraft Facing (FSK) – Reinforced foil outer jacket improves moisture resistance, durability, and code compliance.
- ✅ Wide Temperature Range – Performs in environments from -32°F to 450°F (unfaced) and -32°F to 150°F (faced).
- ✅ Tested & Certified – Meets or exceeds standards: ASTM C612, ASTM C553, UL723, NFPA255, MIL-I-24244C, and more
- ✅ Optimized Dimensions – Panel size 24" x 24" or 48" with R4, R6 or R8 thickness for versatile use and easy installation.
- ✅ Made in the USA – Trusted quality and compliance for professional HVAC insulation projects.
| Brand | F and L Aluminum Parts |
| Manufacturer | F&L |
| UPC | 810185750993 |
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We want you to be 100% satisfied with your purchase. Items can be returned or exchanged within 30 days of delivery.