Why Use CurtainBoard?

PowerWool CurtainBoard™ – the premier choice for curtain wall and perimeter containment systems.

PowerWool CurtainBoard was designed as semi-rigid, exterior mineral wool insulation material for increased fire protection in curtain wall systems.

CHARACTERISTIC RESULT TEST STANDARD
Compliance Mineral Fiber Block and Board Thermal Insulation – Compliant
Mineral Fiber Thermal Insulation for Buildings – Compliant
ASTM C612
CAN/ULC S702.1
Reaction to Fire Flame spread index = 0; Smoke developed index = 0
Flame spread index = 0; Smoke developed index = 0
Determination of Non Combustability of Building Materials – Non Combustible
Behaviour of materials at 750°C – Non Combustible
ASTM E84 (UL 723)
CAN/ULC S102
CAN/ULC S114
ASTM E136
Density 8 lbs/ft³ (128 kg/m³) – Nominal ASTM C303
Dimensional Stability Linear Shrinkage = Pass @1200°F (650°C) ASTM C356
Corrosion Resistance Corrosion of Steel – Passed ASTM C665
Thermal Resistance R-Value / inch @ 75°F — 4.2 hr.ft².F/Btu
RSI value / 25.4 mm @ 24°C — 0.74 m²K/W
ASTM C518
Reaction to Moisture Moisture Sorption – Pass
Water Vapor Transmission, Desiccant Method – 1670ng/Pa.s.m² (29 perm)
Determination of Fungi Resistance – Passed
ASTM C1104
ASTM E96
ASTM C1338
Dimensions 1½” (38 mm) to 6″ (152.4 mm) in ½” increments
16″ × 48″ (406 mm × 1219 mm)
24″ × 48″ (610 mm × 1219 mm)
Acoustic Performance
125Hz 250Hz 500Hz 1000Hz 2000Hz 4000Hz NRC SAA
1.5″ 0.09 0.47 0.97 1.04 0.99 0.98 0.85 0.88
2″ 0.26 0.88 1.12 1.06 0.99 1.00 1.00 1.01
2.5″ 0.39 1.06 1.15 1.06 1.02 1.07 1.05 1.06
3″ 0.57 1.12 1.14 1.03 1.02 1.02 1.10 1.07
4″ 0.76 1.13 1.09 1.03 1.01 1.04 1.05 1.06
ASTM C423-23
ASTM E795-23

Applications

Choose PowerWool for superior fire protection.

Non-combustible mineral wool insulation, rated zero flame spread and zero smoke developed, for maximum safety in demanding environments.​

Ready to spec CurtainBoard on your next project, or want to learn more?