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

ROCKWOOL Comfortboard® 80

ROCKWOOL Comfortboard® 80 is a rigid stone wool board designed for continuous insulation applications. A non-structural sheathing product, Comfortboard 80 provides increased thermal performance to the building envelope.

Comfortboard 80 is now available in 4” and 5” thicknesses, providing thermal performance up to R21 for building envelopes.

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Specification & sizes

Compliance Mineral Fiber Block and Board Thermal Insulation - Type IVB Compliant
Density Actual Density - 8 lb/ft³ (128 kg/m³)
Dimensions

1” to 5”: 24" x 48" (610 mm x 1219 mm)

1.5”, 2.5”: 48" x 72" (1219 mm x 1829 mm)

1.25”, 1.5”, 2”, 2.5”, 3”: 48" x 96" (1219 mm x 2438 mm)

 

Thickness
1“ (25.4 mm)
1.25" (31.8 mm)
1.5" (38.1 mm)
2" (50.8 mm)
2.5“ (63.5 mm)
3" (76.2 mm)
3.5" (88.9 mm)
4“ (101.6 mm)
5“ (127 mm)
Reaction to fire Flame spread index = 0 ; Smoke developed index = 0
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 R-value / inch @ 75ºF - 4.2 hr.ft2.F/Btu
ASTM C518 (C177)

R-value / inch @ 75ºF - 4.2 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: NRC = 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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1” to 5”: 24" x 48" (610 mm x 1219 mm)

1.5”, 2.5”: 48" x 72" (1219 mm x 1829 mm)

1.25”, 1.5”, 2”, 2.5”, 3”: 48" x 96" (1219 mm x 2438 mm)

 

Back
1“ (25.4 mm)
1.25" (31.8 mm)
1.5" (38.1 mm)
2" (50.8 mm)
2.5“ (63.5 mm)
3" (76.2 mm)
3.5" (88.9 mm)
4“ (101.6 mm)
5“ (127 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 - 4.2 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
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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

Product Range

R-value

Thickness (inch)

Width (inch)

Length (inch)

Item number R-value Thickness (inch) Width (inch) Length (inch) Pieces Per Pack Packs Per Pallet Pieces / pallet Square Feet Per Pack Square Feet Per Pallet
307667 4.2 1 24 48 10 18 180 80 1440
169063 5.25 1.25 24 48 7 22 154 56 1232
168605 5.25 1.25 48 96 32 1024
169065 6.3 1.5 24 48 6 20 120 48 960
168604 6.3 1.5 48 72 28 672
168606 6.3 1.5 48 96 28 896
169067 8.4 2 24 48 5 18 90 40 720
168607 8.4 2 48 96 20 640
290750 10.5 2.5 24 48 4 20 80 32 640
246702 10.5 2.5 48 72 16 384
290807 10.5 2.5 48 96 18 576
169069 12.6 3 24 48 3 22 66 24 528
168608 12.6 3 48 96 15 480
329356 14.7 3.5 24 48 4 14 56 32 448
307670 16.8 4 24 48 2 24 48 16 384
307679 21 5 24 48 2 18 36 16 288

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Certifications

20210902 RWNA ILLUS 1624

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Comfortboard 80 techdata
PDF
1.0 MB

COMFORTBOARD 80 Non-Structural Sheathing Continuous Insulation - Techdata

Comfortboard 80 brochure
PDF
623.2 KB

Comfortboard 80 - Exterior non-structural insulated sheathing board

Comfortboard 80 Risinger Case Study brochure
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1.7 MB

Risinger & Co Austin, Texas House Case Study

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