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ROCKWOOL Rockboard
Multipurpose Wood Frame Construction Insulation

ROCKBOARD®

ROCKBOARD® is a premium multi-purpose board insulation to be used in walls, ceilings and floors for acoustic and thermal applications. These include insulating mechanical or utility rooms, or adding a barrier to noise and fire. 

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ROCKBOARD® is a premium multi-purpose board insulation to be used in walls, ceilings and floors for acoustic and thermal applications

These include insulating mechanical or utility rooms, or adding a barrier to noise and fire. These products are available in various densities to support different applications.

Properties:

  • Fire-resistant, non-combustible product with a melting point of approximately 2150°F (1177°C)
  • Water and moisture resistant, repels water
  • Does not rot or promote the growth of mildew, fungi or bacteria
  • Unique directional fiber structure provides excellent sound control
  • Provides superior compressive strength for job site durability
  • Easy to install, cut, shape and fabricate
  • Fabrication at different densities maintains fire-resistant, water-resistant/-repellent and thermal properties
  • Available faced with reinforced foil
  • ROCKWOOL® can contribute to earning LEED® points
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Specification & sizes

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Compliance ASTM C612
ASTM C612 Mineral Fiber Block and Board Thermal Insulation - Type IVA Compliant
Density ASTM C303
Actual Density
ROCKBOARD® 40 4 lb/ft³ (64 kg/m³)
ROCKBOARD® 60 6 lb/ft³ (96 kg/m³)
ROCKBOARD® 80 8 lb/ft³ (128 kg/m³)
Dimensional stability ASTM C356
ASTM C356 Linear Shrinkage - <1% @ 1200°F
Dimensions
ROCKBOARD® 40 24" x 48" (610 mm x 1219 mm)
ROCKBOARD® 60 24" x 48" (610 mm x 1219 mm)
ROCKBOARD® 80 24" x 48" (610 mm x 1219 mm)
Thickness
ROCKBOARD® 40 1” through 4”  (25.4 mm – 101.6 mm)
ROCKBOARD® 60 2” through 4” (50.8 mm – 101.6 mm)
ROCKBOARD® 80 2” through 4” (50.8 mm – 101.6 mm)
Reaction to fire ASTM E84 (UL 723) - CAN/ULC S102 - CAN/ULC S114 - ASTM E136 - ASTM C411
ASTM E84 (UL 723) Flame spread index = 0 ; Smoke development index = 0
CAN/ULC S102 Flame spread index = 0 ; Smoke development index = 0
CAN/ULC S114 Behavior of materials at 750°C - Non-Combustible

ASTM E136

Test for Non-Combustibility - Non-Combustible
ASTM C411 Hot Surface Performance - 1200°F
Thermal resistance ASTM C518 (C177)
  R-value / inch @ 75ºF RSI value / 25.4 mm @ 24ºC
ROCKBOARD® 40 4.2 hr.ft2.F/Btu 0.74 m2K/W
ROCKBOARD® 60 4.3 hr.ft2.F/Btu 0.75 m2K/W
ROCKBOARD® 80 4.0 hr.ft2.F/Btu 0.70 m2K/W
Acoustical Performance ASTM C423
Thickness 125 Hz 250 Hz 500 Hz 1000 Hz 2000 Hz 4000 Hz NRC
1" 0.07 0.32 0.77 1.04 1.05 1.05 0.8
1.5" 0.18 0.48 0.96 1.09 1.05 1.05 0.9
2" 0.26 0.68 1.12 1.1 1.03 1.04 1
3" 0.63 0.95 1.14 1.01 1.03 1.04 1.05
4" 1.03 1.07 1.12 1.04 1.07 1.08 1.1
Reaction to moisture ASTM C1104 - ASTM C1338
ASTM C1104 Moisture Sorption - 0.03%
ASTM C1338 Determination of Fungi Resistance - Passed
Compressive strength ASTC C615
ROCKBOARD® 40 90 psf (4.3 kPa) @ 10% compression 225 psf (10.8 kPa) @ 25% compression
ROCKBOARD® 60 355 psf (17 kPa) @ 10% compression 585 psf (28 kPa) @ 25% compression
ROCKBOARD® 80 439 psf (21 kPa) @ 10% compression 1065 psf (50 kPa) @ 25% compression
Corrosion Resistance ASTM C795 - ASTM C665
ASTM C795 Stress Corrosion Cracking Tendency of Austenitic Stainless Steel - Passed
ASTM C665 Corrosion of Steel - Passed
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ASTM C612 Mineral Fiber Block and Board Thermal Insulation - Type IVA Compliant
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Actual Density
ROCKBOARD® 40 4 lb/ft³ (64 kg/m³)
ROCKBOARD® 60 6 lb/ft³ (96 kg/m³)
ROCKBOARD® 80 8 lb/ft³ (128 kg/m³)
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ASTM C356 Linear Shrinkage - <1% @ 1200°F
Back
ROCKBOARD® 40 24" x 48" (610 mm x 1219 mm)
ROCKBOARD® 60 24" x 48" (610 mm x 1219 mm)
ROCKBOARD® 80 24" x 48" (610 mm x 1219 mm)
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ROCKBOARD® 40 1” through 4”  (25.4 mm – 101.6 mm)
ROCKBOARD® 60 2” through 4” (50.8 mm – 101.6 mm)
ROCKBOARD® 80 2” through 4” (50.8 mm – 101.6 mm)
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ASTM E84 (UL 723) Flame spread index = 0 ; Smoke development index = 0
CAN/ULC S102 Flame spread index = 0 ; Smoke development index = 0
CAN/ULC S114 Behavior of materials at 750°C - Non-Combustible

ASTM E136

Test for Non-Combustibility - Non-Combustible
ASTM C411 Hot Surface Performance - 1200°F
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  R-value / inch @ 75ºF RSI value / 25.4 mm @ 24ºC
ROCKBOARD® 40 4.2 hr.ft2.F/Btu 0.74 m2K/W
ROCKBOARD® 60 4.3 hr.ft2.F/Btu 0.75 m2K/W
ROCKBOARD® 80 4.0 hr.ft2.F/Btu 0.70 m2K/W
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Thickness 125 Hz 250 Hz 500 Hz 1000 Hz 2000 Hz 4000 Hz NRC
1" 0.07 0.32 0.77 1.04 1.05 1.05 0.8
1.5" 0.18 0.48 0.96 1.09 1.05 1.05 0.9
2" 0.26 0.68 1.12 1.1 1.03 1.04 1
3" 0.63 0.95 1.14 1.01 1.03 1.04 1.05
4" 1.03 1.07 1.12 1.04 1.07 1.08 1.1
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ASTM C1104 Moisture Sorption - 0.03%
ASTM C1338 Determination of Fungi Resistance - Passed
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ROCKBOARD® 40 90 psf (4.3 kPa) @ 10% compression 225 psf (10.8 kPa) @ 25% compression
ROCKBOARD® 60 355 psf (17 kPa) @ 10% compression 585 psf (28 kPa) @ 25% compression
ROCKBOARD® 80 439 psf (21 kPa) @ 10% compression 1065 psf (50 kPa) @ 25% compression
Back
ASTM C795 Stress Corrosion Cracking Tendency of Austenitic Stainless Steel - Passed
ASTM C665 Corrosion of Steel - Passed
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