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.

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)
	4" (102 mm)	R-17.4 (2.9)
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" (102 mm)	R-17.4 (3.1)
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" (25 mm)	R-4.5 (0.8)
	1½" (38 mm)	R-6.8 (1.2)
	2" (51 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
Mean Temperature	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.)
Type	Facing	Thickness	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
	FSK	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
4.25 PCF (68 kg/m³)	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
	ASJ+	2" (51 mm)	0.77	0.44	0.60	0.50	0.41	0.30	0.50