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COMFORTBOARD™ 80

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

  • Can be easily cut with a breadknife
  • Non-combustible with a melting point of approximately 1177°C (2150°F)
  • Excellent sound absorbency
  • Vapor Permeable
  • Does not rot or promote 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
  • ROXUL can contribute to earning LEED® points
View datasheet
COMFORTBOARD™ 80

Product Range

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Item Number R-Value Thickness (in) Width (in) Length (in) Pieces Per Pack Packs Per Pallet sq ft Per Pack sq ft Per Pallet
169063 R-5 1.25 24 48 7 22 56 1232
168605 R-5 1.25 48 96 32 1024
169065 R-6 1.5 24 48 6 20 48 960
168604 R-6 1.5 48 72 28 672
168606 R-6 1.5 48 96 28 896
169067 R-8 2 24 48 5 18 40 720
169068 R-8 2 36 48 3 16 36 576
168607 R-8 2 48 96 20 640
246702 R-10 2.5 48 72 16 384
169069 R-12 3 24 48 3 22 24 528
169070 R-12 3 36 48 2 16 24 384
168608 R-12 3 48 96 15 480

Technical Information

Property Test Standard Performance
Compliance ASTM C612 Mineral Fiber Block and Board Thermal Insulation - Type IVB Compliant
Compliance CAN/ULC S702 Mineral Fibre Thermal Insulation for Buildings - Type 1 Compliant
Reaction to Fire ASTM E84 (UL 723) Flame spread index = 0 ; Smoke developed index = 0
Reaction to Fire CAN/ULC S102 Flame spread index = 0 ; Smoke developed index = 0
Reaction to Fire CAN/ULC S114 Determination of Non Combustibility of Building Materials - Non Combustible
Density ASTM C303 Actual Density - 8 lbs/ft³ (128 kgs/m³)
Corrosion Resistance ASTM C795 Stress Corrosion Cracking Tendency of Austenitic Stainless Steel - Passed
Corrosion Resistance ASTM C665 Corrosion of Steel - Passed
Thermal Resistance ASTM C518 (C177) R-Value / inch @ 75oF - 4 hr.ft2.F/Btu RSI value / 25.4mm @ 24oC - 0.70 m2K/W
Thermal Resistance ASTM C518 (C177) RSI value / 25.4mm @ 24oC 0.70 m2K/W
Reaction to Moisture ASTM C1104 Moisture Sorption - 0.05%
Reaction to Moisture ASTM E96 Water Vapor Transmission, Desiccant Method - 1768ng/Pa.s.m2 (31 perm)
Reaction to Moisture ASTM C1338 Determination of Fungi Resistance - Passed
Compressive Strength ASTC C165 439psf (21kPa) @ 10% compression
Compressive Strength ASTC C165 1065psf (50kPa) @ 25% compression
Thickness 1.25" (31.8mm), 1.5" (38.1mm), 2" (50.8mm), 3" (76.2mm)
Dimensions 24"x48"(610x1219mm),36"x48"(914x1219mm),48"x72"(1219x1829mm),48"x96"(1219x2438mm)
Acoustical Performance ASTM C423
Thickness 125 Hz 250 Hz 500 Hz 1000 Hz 2000Hz 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

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