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Industrial Felt

Owens Corning

Industrial Felt

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Board Insulation Board Insulation

Mineral Board Mineral Board

Mineral Wool Mineral Wool

Sloped Ceiling Sloped Ceiling

Design Options

Product Description

Thermafiber Industrial Felt is an economical mineral fiber board for thermal, fire protection, and sound control applications. The fine-fiber, semi-rigid composition makes industrial felt easy to handle. It is available in actual densities from 2.5 to 12 lb./cu. ft. and is suitable for temperatures up to 1,200°F (649°C). The wide range of densities make Thermafiber Industrial Felt adaptable for industrial applications in a broad scope of low- or high-temperature applications. On initial startup only, heat rise should not exceed 15°F per minute to allow binder to dissipate without excessive temperature rise. Thermal conductivity is not affected.



Standard Sizes: 2' 0", 3' 0", 6' 0"


Standard Sizes: 4' 0", 5' 0", 6' 0"


Standard Sizes: 1", 1-1/2", 2", 2-1/2", 3", 3-1/2", 4", 4-1/2", 5", 5-1/2", 6"

Performance Data

R-Value Per Inch

Measure of the thermal resistance of the product per inch of thickness, imperial units.

°F·ft^2·h / BTU / inch


Water Vapor Transmission

An imperial perm is defined as 1 grain of water vapor per hour, per square foot, per inch of mercury

Fire Resistance

Amount of time the product can withstand fire

Product Density

lbs / ft^3

2.5, 3, 3.5, 4, 4.5, 5, 6, 6.5, 7, 8, 9, 9.5, 10, 12

Smoke Development

As defined by the ASTM E84 testing standard


Linear Shrinkage

The percent that a product shrinks, usually in response to heat.



NRC Value

The Noise Reduction Coefficient values of this product

0.6, 0.65, 0.75, 0.85, 1, 1.1, 1.2


Measure of the thermal resistance of the product, imperial units.

°F·ft^2·h / BTU

4.16, 4.34

Flame Spread

As defined by the ASTM E84 testing standard


Minimum Recycled

The minimum amount of the product's input materials that come from recycled sources