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Fiberglass Insulation

The smart choice to make spaces more comfortable and energy efficient.

The ability to resist heat flow — insulation's thermal resistance.

Thermal Properties

Ability to provide thermal resistance for comfort and efficiency.

Insulating for Sound

Sound absorption characteristics, helping reduce noise transmission.

Applications

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Immerse yourself in a realistic sound-simulation tool to experience the acoustical performance of Knauf.

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FDM Blanket Insulation

Engineered as the foundational thermal component of the flexible duct within HVAC systems. Noted for its excellent thermal properties, this fiberglass blanket delivers a maximum Flame Spread index of 25 and maximum Smoke Developed index of 50.

Applications

HVAC

Certifications

(345.52 KB PDF)

Safety Data Sheet

View All Downloads

Product Features

Thermal Performance

Excellent thermal properties help reduce the operating costs of the HVAC system. It can even save the amount of energy it took to make it in just hours or days.

Easy Install & Handling

Highly resilient and flexible. This insulation blanket delivers tensile strength that allows for easy, streamlined handling by the flexible duct fabricator and installer.

ECOSE® Technology

Our patented, bio-based binder is a smarter alternative to using phenol formaldehyde. It’s been foundational in our commitment to sustainability.

Product Details

Technical Data

Technical Data
Property (Unit)	Test	Performance
Corrosion	ASTM C1617	Pass
Thermal Conductivity	ASTM C518	0.26
Odor Emission	ASTM C1304	Pass
Water Vapor Sorption (by weight)	ASTM C1104	Less than 5%
Mold Growth	ASTM C1338	Pass
Surface Burning Characteristics (flame spread/smoke developed)	ASTM E84, NFPA 255, UL 723	25/50, UL/ULC Classified

Forms Available

Forms Available
Thickness	Installed Thickness	R-Value	Width	Length
2"	1⅝"	R-6	Varies	150'
2⅝"	2⅛"	R-8	Varies	125'

All Product Resources

January 2020 (PDF / 345.52 KB)

Data Sheet - FDM Blanket Insulation

December 2019 (PDF / 1.67 MB)

Safety Data Sheet - FDM Blanket Insulation

January 2020 (PDF / 286.75 KB)

GREENGUARD Gold - FDM Blanket

January 2020 (PDF / 276.54 KB)

GREENGUARD - FDM Blanket

January 2020 (PDF / 153.69 KB)

UL Environmental Claim Validation - Formaldehyde Free - FDM Blanket

January 2020 (PDF / 155.91 KB)

UL Environmental Claim Validation - Recycled Content - FDM Blanket

Customer Reviews

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Helpful Videos

What is Knauf ECOSE Technology

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