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SAFE 65, SAFE 55, SAFE, ROCKBOARD, CURTAINROCK
Curtain Wall Exterior Walls Insulation

CURTAINROCK®

CURTAINROCK® is a lightweight, semi-rigid stone wool insulation board designed specifically for use in curtain wall systems. It is especially suited for backpan or mechanical fastening applications. ROCKWOOL® offers CURTAINROCK®, CURTAINROCK® 40, and CURTAINROCK® 80 to meet a wide variety of curtain wall specifications.

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CURTAINROCK® is a lightweight, semi-rigid stone wool insulation board

CURTAINROCK® is a lightweight, semi-rigid stone wool insulation board designed specifically for use in curtain wall systems. It is especially suited for backpan or mechanical fastening applications. ROCKWOOL® offers CURTAINROCK®, CURTAINROCK® 40, and CURTAINROCK® 80 to meet a wide variety of curtain wall specifications.

CURTAINROCK® 40/80, when paired with ROXUL SAFE™, provides a comprehensive critical line of defense in fire protection that has been UL/ULC tested and approved for perimeter fire containment.

Properties:

  • Low moisture sorption rate; effectively drains water away from exterior walls
  • Delivers higher R-values for lasting thermal protection
  • Non-combustible product with a melting point of approximately 2150°F (1177°C)
  • Sound absorbent
  • Chemically inert; non-corrosive
  • Repels water, does not rot or promote the growth of mildew, fungi or bacteria
  • Can be fabricated and faced with reinforced foil facings
  • Approved for use as a component of UL-approved systems
  • 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
ASTM C303 Actual Density - 3.5 lb/ft³ (56 kg/m³)
Dimensional stability ASTM C356
ASTM C356 Linear Shrinkage - < 2 % @ 1200°F
Dimensions
24" x 48" (610 mm x 1219 mm)
Thickness
Product is available in 1” through 5” (25.4 mm - 127 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 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
ASTM E136 Test for Non-Combustibility - Non-Combustible
ASTM C411 Hot Surface Performance - 1200°F
Thermal resistance ASTM C518 (C177)
ASTM C518 (C177) R-value / inch @ 75ºF - 4.2 hr.ft2.F/Btu
  RSI value / 25.4 mm @ 24ºC - 0.74 m2K/W
Acoustical Performance ASTM C423
Thickness 125 Hz 250 Hz 500 Hz 1000 Hz 2000 Hz 4000 Hz NRC
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 E96 - ASTM C1338
ASTM C1104 Moisture Sorption - 0.01%
ASTM E96 Water Vapor Transmission, Desiccant Method - 1805 ng/Pa.s.m2 (32 perm)
ASTM C1338 Determination of Fungi Resistance - Passed
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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ASTM C303 Actual Density - 3.5 lb/ft³ (56 kg/m³)
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ASTM C356 Linear Shrinkage - < 2 % @ 1200°F
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24" x 48" (610 mm x 1219 mm)
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Product is available in 1” through 5” (25.4 mm - 127 mm)
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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
ASTM E136 Test for Non-Combustibility - Non-Combustible
ASTM C411 Hot Surface Performance - 1200°F
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ASTM C518 (C177) R-value / inch @ 75ºF - 4.2 hr.ft2.F/Btu
  RSI value / 25.4 mm @ 24ºC - 0.74 m2K/W
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Thickness 125 Hz 250 Hz 500 Hz 1000 Hz 2000 Hz 4000 Hz NRC
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 - 0.01%
ASTM E96 Water Vapor Transmission, Desiccant Method - 1805 ng/Pa.s.m2 (32 perm)
ASTM C1338 Determination of Fungi Resistance - Passed
Back
ASTM C795 Stress Corrosion Cracking Tendency of Austenitic Stainless Steel - Passed
ASTM C665 Corrosion of Steel - Passed
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