Rigiboard™ Pro Max is a high-density rigid mineral wool insulation board engineered for commercial exterior wall assemblies that demand greater structural strength.
Strengthen your building envelope with PowerWool™ Rigiboard™ Pro Max, a high-density rigid mineral wool insulation board engineered for enhanced compressive strength, fire safety, and long-term thermal performance.
Designed for commercial exterior wall assemblies, Rigiboard™ Pro Max delivers reliable performance under heavier cladding loads and more demanding construction conditions. At 11 lbs/ft³ with 755 psf of compression resistance — roughly 23% more load-bearing capacity than standard Rigiboard 80 — it holds its shape under mechanically fastened cladding systems and heavy-duty commercial assemblies.
PowerWool™ Rigiboard™ Pro Max helps create safer, quieter, and more resilient commercial buildings by resisting fire, repelling moisture, and maintaining stable R-4-per-inch thermal performance over time. It’s approved for use in Canada and the U.S., and suitable for substitution in rated NFPA 285 and ASTM E119 wall assemblies.
| CHARACTERISTIC | RESULT | TEST STANDARD | |||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Density | 11 lbs/ft³ (176 kg/m³) | CAN/ULC S702.1 | |||||||||||||||||||||||||||||||||||||||||||||
| Compression Resistance | 755 psf (36 kPa) @ 10% Deformation | ASTM C165-07 (2017) | |||||||||||||||||||||||||||||||||||||||||||||
| Thermal Resistance | R value/inch @ 75°F = 4 ft²·F/Btu (min)* RSI value/25.4 mm @ 24°C = 0.70 m²K/W (min) | ASTM C518-17 ASTM C518-17 | |||||||||||||||||||||||||||||||||||||||||||||
| Maximum Service Temperature | Hot Surface Performance: 1200°F (650°C) | ASTM C411 | |||||||||||||||||||||||||||||||||||||||||||||
| Non-Combustibility | Pass | CAN/ULC S114-05 (2018) | |||||||||||||||||||||||||||||||||||||||||||||
| Surface Burning Characteristics | Flame Spread Classification = 0 (Pass) Smoke Developed = 0 (Pass) | CAN/ULC S102-16 CAN/ULC S102-16 | |||||||||||||||||||||||||||||||||||||||||||||
| Smolder Resistance | Mean Mass Loss, % = 0 (Pass) Mass Loss Each Specimen, % = 0 (Pass) | CAN/ULC S129-15 | |||||||||||||||||||||||||||||||||||||||||||||
| Water Vapour Permeance, Desiccant Method | 2029 ng/Pa·s·m² (35.6 perm) (at 38 mm (1.5”) thickness) | ASTM E96M-16 | |||||||||||||||||||||||||||||||||||||||||||||
| Water Vapor Sorption | 0.05% | ASTM C1104-13A | |||||||||||||||||||||||||||||||||||||||||||||
| Water Absorption | 0.09% by volume / 0.64% by weight | ASTM C209-14 | |||||||||||||||||||||||||||||||||||||||||||||
| Fungi Resistance | Pass | ASTM C1338-08 | |||||||||||||||||||||||||||||||||||||||||||||
| Corrosiveness | Pass | ASTM C665-17 | |||||||||||||||||||||||||||||||||||||||||||||
| Dimensional Stability / Linear Shrinkage | Pass | ASTM C356-17 | |||||||||||||||||||||||||||||||||||||||||||||
| Acoustic Performance |
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ASTM C423-23 ASTM E795-23 |
From exterior wall assemblies to below-grade and specialty applications, PowerWool™ RigiBoard™ provides a durable, fire-safe, and vapor-open solution for modern high-performance construction.
Sizes Available: All boards are 24″x48″ in size ranging in thickness from 1″ to 5″ thick
PowerWool™ RigiBoard™ is designed for versatility across a wide range of building assemblies, including:
Non-combustible mineral wool insulation, rated zero flame spread and zero smoke developed, for maximum safety in demanding environments.
