Duct Liner

You can count on Johns Manville duct liner solutions to help you create more comfortable and energy efficient indoor environments when lining metal ducts inside HVAC systems. Whether you are a residential or commercial building occupant or an HVAC contractor, JM duct liner delivers less unwanted noise, more consistent temperatures for improved energy efficiency and added product protection against microbial growth.

JM offers a wide range of duct liner solutions that provide superior thermal and acoustical performance and are manufactured with advanced technologies that provide unique fabrication capabilities—because at JM, we always put performance first.

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Rigid, fiberglass duct liner with a glass mat airstream surface, coated with an antimicrobial coating, designed to insulate plenums and duct work (Service temp: 250°F)

Johns Manville Linacoustic® R-300 is a rigid fiberglass board that is specifically designed for lining HVAC plenums and air distribution ductwork, and meets or exceeds all ASTM C 1071 Type II duct liner requirements. Linacoustic R-300’s airstream surface is coated with our proprietary Permacote® coating, which provides a durable and smooth surface that is resistant to the accumulation of dust and dirt. It also provides added product protection against microbial growth. Linacoustic R-300 provides exceptional durability and superior thermal and acoustical performance to help you create more comfortable and energy efficient indoor environments for commercial and residential building occupants.

NRC: 0.9 (R6)
R-value: 6.3 (1.5")
ASTM C1071 Type II: Complies
Greenguard: Certified

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Fiberglass duct liner with a glass mat airstream surface coated with antimicrobial coating (Service temp: 250°F)

Johns Manville Linacoustic® RC duct liner provides superior thermal and acoustical performance and improved handling during fabrication when lining metal ducts. Linacoustic RC’s airstream surface is coated with our proprietary Permacote® coating, which provides a durable surface that is resistant to dust and dirt and provides added product protection against microbial growth. Our unique flame-attenuated technology yields a very controlled fine fiber characteristic that results in a fiberglass core unmatched by our competitors. This ensures consistently high performance and easy processing on a wide range of duct fabrication equipment. Building occupants benefit from less unwanted noise and more consistent temperatures for improved comfort.

NRC: 0.85 (R6)
R Value: 6.3 ( 1.5")
ASTM C1071 Type I: Complies
Greenguard: Certified

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Available Documents

Fiberglass duct liner with a glass mat airstream surface coated with antimicrobial coating and superior sound absorbing properties (Service temp: 250°F)

Johns Manville new and improved Permacote® Linacoustic® RC-HP is a flexible duct liner insulation that provides enhanced acoustical performance versus standard duct liners. It has been recently redesigned to include a glass mat on the airstream surface that is coated with our proprietary Permacote® coating. This provides a durable surface that is resistant to dust and dirt and provides added product protection against microbial growth. Our unique flame-attenuated technology yields a very controlled fine fiber characteristic that results in a fiberglass core unmatched by our competitors. This ensures consistently high performance and easy processing on a wide range of duct fabrication equipment. Building occupants benefit from less unwanted noise and more consistent temperatures for improved comfort. 

NRC: 0.75 (R4.3)
R Value: 4.3 (1")
ASTM C1071 Type I: Complies

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Available Documents

Textile fiberglass duct liner designed for lining sheet metal ducts (Service temp: 250°F)

LinaTex® textile fiber duct liner is a flexible duct liner specifically designed for lining sheet metal ducts in HVAC systems. This product meets the needs of one segment of the market that prefers a textile fiber duct liner. It provides acoustical and thermal performance for lined metal ducts. JM offers this product as part of our commitment to providing a complete range of product solutions. 

NRC: 0.75 (R6)
R-value: 5.5 (1.5")
ASTM C1071 Type I: Complies

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Available Documents

Pre-kerfed, fiberglass spiral duct liner, with a glass mat airstream surface, coated with an antimicrobial coating (Service temp: 250°F)

Johns Manville Spiracoustic Plus® is a spiral duct liner system engineered to provide superior acoustical and thermal performance for spiral air duct interiors with an airstream diameter of 6 inches and larger. Spiracoustic Plus delivers significantly improved acoustical and thermal performance compared to double-wall construction, all at a competitive cost for the system. It is manufactured with evenly-spaced kerfs to allow the material to conform to the inside diameter of spiral ducts, producing a finished airstream surface. This surface is coated with our proprietary Permacote® coating, which provides a durable surface and added product protection against microbial growth. As an added benefit, the exterior surface is laminated with a tough fire-resistant FSK facing. 

NRC: 0.85 (R6)
R Value: 6.4 ( 1.5")
ASTM C1071 Type III: Complies
Greenguard: Certified

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Available Documents

Double-wall, fiberglass insulation (Service temp: 350°F)

Spiral SG Double Wall Insulation is a thermal and acoustical, rotary process, fiber insulation designed for use in double-wall spiral HVAC ducts.  To optimize performance, the product is offered in a range of densities and thicknesses. The resilient fiberglass blankets resist damage during fabrication and carry a UL Fire Hazard Classification rating of 25/50.

Service Temp Max: 350°F (177°C)
Recycled Content: 18%
GreenGuard: Certified

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Available Documents