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Earthwool® Insulation Board

A versatile, proven performer delivers excellent thermal and acoustical properties. It’s easy to handle, fast to install and looks neat and polished in no time. Boost efficiency and reduce the noise in areas like heating and air conditioning ducts, power and process equipment, boiler and stack installations, metal and masonry walls, wall and roof panel systems, curtain wall assemblies and cavity walls.

Full truck orders only available in Washington, Oregon, California, Idaho, Nevada, Montana, Wyoming, Utah, Arizona, Colorado, and New Mexico.

Applications

Certifications
Product Features
Quality Design
Earthwool is the new benchmark that stands apart for its genuine sustainability, excellent performance and consistently high product quality.
ECOSE Technology
Our patented, bio-based binder is a smarter alternative to using phenol formaldehyde. It’s been foundational in our commitment to sustainability. For the world we live in.
Proven Performance
Designed to deliver high thermal and acoustical performance. It helps maintain temperatures and reduce unwanted noise for a more comfortable environment.
Product Details
Technical Data
Technical Data
Property (Unit) Test Performance
Corrosiveness ASTM C665 Does not accelerate corrosion of steel 
Corrosion ASTM C1617 Pass 
Maximum Service Temperature ASTM C411 450° F (232° C)
Puncture Resistance TAPPI Test T803, Beach Units FSK facing: 25, ASJ+ facing: 120
Water Vapor Permeance ASTM E96, Procedure A FSK facing: 0.02 perms ASJ+ facing: 0.01 perms
Water Vapor Sorption (by weight) ASTM C1104 Less than 5%
Shrinkage ASTM C356 Less than 0.3%
Mold Growth ASTM C1338 Pass
Surface Burning Characteristics (flame spread/smoke developed) ASTM E84, UL 723, CAN/ULC S102, NFPA 90A and 90B UL/ULC Classified FHC 25/50 
Forms Available
Forms Available*
Density Thickness R-Value (R-SI)
1.6 PCF (26 kg/m³) 1½" (38 mm) R-6.3 (1.1)
2" (51 mm) R-8.3 (1.5)
3" (76 mm) R-12.5 (2.2)
2.25 PCF (36 kg/m³) 1" (25 mm) R-4.3 (0.8)
1½" (38 mm) R-6.5 (1.1)
2" (51 mm) R-8.7 (1.5)
3" (76 mm) R-13.0 (2.3)
4" (102 mm) R-17.4 (3.1)
3.0 PCF (48 kg/m³) 1" (25 mm) R-4.3 (0.8)
1½" (38 mm) R-6.5 (1.1)
2" (51 mm) R-8.7 (1.5)
2½" (64 mm) R-10.9 (1.9)
3" (76 mm) R-13.0 (2.3)
4.25 PCF (68 kg/m³) 1" (25 mm) R-4.3 (0.8)
1½ (38 mm) R-6.5 (1.1)
2" (51 mm) R-8.7 (1.5)
2½" (64 mm) R-10.9 (1.9)
6.0 PCF (96 kg/m³) 1" (76 mm) R-4.5 (0.8)
1½" (89 mm) R-6.8 (1.2)
2" (102 mm) R-9.1 (1.6)

*Available in widths of 24" (610 mm) and 48" (1219 mm) and lengths from 36" to 120" (915 mm to 3048 mm). Cartons only.
Thermal Conductivity k
Thermal Conductivity k | ASTM C177
Mean Temperature 1.6 PCF 3.0 PCF 6.0 PCF
k k(SI) k k(SI) k k(SI)
75° F (24° C) 0.24 0.035 0.23 0.033 0.22 0.032
100° F (38° C) 0.25 0.036 0.24 0.035 0.23 0.033
200° F (93° C) 0.33 0.048 0.29 0.042 0.27 0.039
300° F (149° C) 0.42 0.061 0.37 0.053 0.34 0.049
Sound Absorption Coefficients
Sound Absorption Coefficients | ASTM C423, Type A Mounting
Type Facing Thickness Octave Band Center Frequency (cycles/sec.)
125 250 500 1000 2000 4000 NRC
1.6 PCF (26 kg/m³) Plain 1½" (38 mm) 0.19 0.44 0.86 0.98 1.00 1.02 0.80
2" (51 mm) 0.31 0.57 0.96 1.04 1.03 1.03 0.90
2½" (64 mm) 0.43 0.82 1.12 1.07 1.04 1.03 1.00
3" (76 mm) 0.47 0.92 1.17 1.06 1.06 1.04 1.05
2.25 PCF (36 kg/m³) Plain 1"  (25 mm) 0.05 0.24 0.59 0.86 0.97 1.00 0.65
1½" (38 mm) 0.17 0.49 0.93 1.03 1.03 0.99 0.85
2" (51 mm) 0.26 0.62 1.05 1.07 1.04 1.05 0.95
FSK 1" (25 mm) 0.14 0.69 0.81 0.99 0.55 0.27 0.75
2" (51 mm) 0.63 0.76 1.11 0.75 0.42 0.22 0.75
3.0 PCF (48 kg/m³) Plain 1" (25 mm) 0.08 0.23 0.62 0.88 0.96 0.99 0.65
1½" (38 mm) 0.09 0.39 0.89 1.03 1.06 1.01 0.85
2" (51 mm) 0.29 0.65 1.11 1.13 1.06 1.03 1.00
3" (76 mm) 0.54 1.01 1.18 1.07 1.07 1.04 1.10
4" (102 mm) 0.95 1.11 1.17 1.07 1.07 1.06 1.10
FSK 1" (25 mm) 0.21 0.63 0.84 0.93 0.51 0.22 0.75
1½" (38 mm) 0.45 0.60 0.99 0.73 0.53 0.27 0.70
2" (51 mm) 0.67 0.77 0.93 0.74 0.47 0.28 0.75
ASJ+ 1" (25 mm) 0.15 0.71 0.65 0.82 0.41 0.16 0.65
1½" (38 mm) 0.42 0.55 0.91 0.69 0.40 0.23 0.65
2" (51 mm) 0.75 0.71 0.80 0.66 0.41 0.24 0.65
4.25 PCF (68 kg/m³) Plain 1" (25 mm) 0.06 0.24 0.69 0.99 1.05 1.02 0.75
ASJ+

2½" (64 mm)

0.75 0.63 0.63 0.62 0.41 0.25 0.55
6.0 PCF (96 kg/m³) Plain 1" (25 mm) 0.05 0.26 0.77 1.04 1.04 1.03 0.80
1½" (38 mm) 0.13 0.58 1.01 1.05 1.00 1.01 0.90
2" (51 mm) 0.32 0.81 1.08 1.06 1.03 1.04 1.00
FSK 1" (25 mm) 0.23 0.65 0.39 0.48 0.47 0.32 0.50
1½" (38 mm) 0.61 0.47 0.78 0.61 0.51 0.35 0.60
2" (51 mm) 0.77 0.50 0.72 0.58 0.53 0.41 0.60
ASJ+ 1½" (38 mm) 0.60 0.46 0.62 0.48 0.47 0.31 0.50
2" (51 mm) 0.77 0.44 0.60 0.50 0.41 0.30 0.50
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