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COMFORTBOARD
Wood Stud Steel Stud Underslab floor Continuous Insulation Basement Wall Exterior Insulated Below Grade Wood Frame Construction Insulation

COMFORTBOARD™ 80

ROCKWOOL COMFORTBOARD™ 80 is a rigid mineral wool insulation sheathing board that is non-combustible, water-repellent, fire-resistant and sound absorbent. COMFORTBOARD™ 80 is an exterior non-structural insulation sheathing that provides a continuous layer of insulation around the residential building envelope.

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ROCKWOOL COMFORTBOARD™ 80 is a rigid mineral wool insulation sheathing board that is non-combustible, water-repellent, fire-resistant and sound absorbent

COMFORTBOARD™ 80 is an exterior non-structural insulation sheathing that provides a continuous layer of insulation around the residential building envelope.

This product is specifically engineered as exterior non-structural insulation sheathing for high performance residential wall systems.

Properties:

  • Can be easily cut with a bread knife
  • Non-combustible with a melting point of approximately 1177°C  (2150°F)
  • Excellent sound absorbency
  • Vapor permeable
  • Does not rot or promote the growth of fungi or mildew 
  • Low moisture sorption
  • Chemically inert; non-corrosive
  • Water-repellent
  • CFC- and HCFC-free product and process
  • Made from natural & recycled materials
  • ROCKWOOL® can contribute to earning LEED® points
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Specification & sizes

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Compliance ASTM C612 - CAN/ULC S702
ASTM C612

Mineral Fiber Block and Board Thermal Insulation - Type IVB Compliant

CAN/ULC S702 Mineral Fiber Thermal Insulation for Buildings, Type 1 Compliant
Density ASTM C303
ASTM C303 Actual Density - 8 lb/ft³ (128 kg/m³)
Dimensions
24" x 48" (610 mm x 1219 mm)
36" x 48" (914 mm x 1219 mm)
48" x 72" (1219 mm x 1829 mm)
48" x 96" (1219 mm x 2438 mm)
Thickness
1.25" (31.8 mm)
1.5" (38.1 mm)
2" (50.8 mm)
3" (76.2 mm)
Reaction to fire ASTM E84 (UL 723) - CAN/ULC S102 - CAN/ULC S114
ASTM E84 (UL 723) Flame spread index = 0 ; Smoke developed index = 0
CAN/ULC S102 Flame spread index = 0 ; Smoke developed index = 0
CAN/ULC S114 Determination of Non-Combustibility of Building Materials - Non-Combustible
Thermal resistance ASTM C518 (C177)
ASTM C518 (C177)

R-value / inch @ 75ºF - 4 hr.ft2.F/Btu

RSI value / 25.4 mm @ 24ºC - 0.70 m2K/W 

   RSI value / 25.4 mm @ 24ºC - 0.70 m2K/W
Acoustical Performance ASTM C423
Thickness 125 Hz 250 Hz 500 Hz 1000 Hz 2000 Hz 4000 Hz NRC
1.5" 0.21 0.64 0.92 1 0.95 1.01 0.9
2" 0.43 0.78 0.9 0.97 0.97 1 0.9
3" 0.75 0.82 0.89 0.94 1 1 0.9
Reaction to moisture ASTM C1104 - ASTM E96 - ASTM C1338
ASTM C1104 Moisture Sorption - 0.05%
ASTM E96 Water Vapor Transmission, Desiccant Method - 1768 ng/Pa.s.m2 (31 perm)
ASTM C1338 Determination of Fungi Resistance - Passed
Compressive strength ASTM C165
ASTM C165 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 IVB Compliant

CAN/ULC S702 Mineral Fiber Thermal Insulation for Buildings, Type 1 Compliant
Back
ASTM C303 Actual Density - 8 lb/ft³ (128 kg/m³)
Back
24" x 48" (610 mm x 1219 mm)
36" x 48" (914 mm x 1219 mm)
48" x 72" (1219 mm x 1829 mm)
48" x 96" (1219 mm x 2438 mm)
Back
1.25" (31.8 mm)
1.5" (38.1 mm)
2" (50.8 mm)
3" (76.2 mm)
Back
ASTM E84 (UL 723) Flame spread index = 0 ; Smoke developed index = 0
CAN/ULC S102 Flame spread index = 0 ; Smoke developed index = 0
CAN/ULC S114 Determination of Non-Combustibility of Building Materials - Non-Combustible
Back
ASTM C518 (C177)

R-value / inch @ 75ºF - 4 hr.ft2.F/Btu

RSI value / 25.4 mm @ 24ºC - 0.70 m2K/W 

   RSI value / 25.4 mm @ 24ºC - 0.70 m2K/W
Back
Thickness 125 Hz 250 Hz 500 Hz 1000 Hz 2000 Hz 4000 Hz NRC
1.5" 0.21 0.64 0.92 1 0.95 1.01 0.9
2" 0.43 0.78 0.9 0.97 0.97 1 0.9
3" 0.75 0.82 0.89 0.94 1 1 0.9
Back
ASTM C1104 Moisture Sorption - 0.05%
ASTM E96 Water Vapor Transmission, Desiccant Method - 1768 ng/Pa.s.m2 (31 perm)
ASTM C1338 Determination of Fungi Resistance - Passed
Back
ASTM C165 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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