RigiBoard™ APEX is a high-density mineral wool insulation board engineered for mechanically attached low-slope roofing systems.
Elevate your roofing assembly with PowerWool™ RigiBoard™ APEX, a high-density mineral wool insulation board designed for superior performance in commercial and industrial low-slope roofing applications.
At 12.5 lb/ft³ density with R-3.85 per inch thermal resistance, RigiBoard APEX delivers exceptional compressive strength, fire safety, and long-term thermal stability. The board’s high-density construction withstands foot traffic and mechanical attachment while maintaining dimensional integrity throughout its service life.
PowerWool™ RigiBoard™ APEX helps create safer, more energy-efficient roofing systems by resisting fire, repelling moisture, and maintaining stable thermal performance that does not degrade over time. It’s approved for use in Canada and the U.S., with CCMC Listing #14061-L certification.
Key Performance Benefits
| CHARACTERISTIC | RESULT | TEST STANDARD |
|---|---|---|
| Compliance | Standard Specification for Mineral Fiber Roof Insulation Boards | ASTM C726-05 |
| Non-Combustibility | Pass (at 750 °C) | ASTM E136, CAN/ULC S114 |
| Surface Burning Characteristics | Flame Spread Classification = 0 (Pass) Smoke Developed = 0 (Pass) |
ASTM E84, CAN/ULC S102 ASTM E84, CAN/ULC S102 |
| Density | 12.5 lb/ft³ (200 kg/m³) | ASTM C303 |
| Thermal Resistance | R value/inch @ 75°F = 3.85 ft²·F/Btu RSI value/25.4 mm @ 24°C = 0.68 m²K/W |
ASTM C518 ASTM C518 |
| Water Absorption | <1% vol | ASTM C1763 |
| Water Vapour Permeance, Desiccant Method | 2056 ng/Pa·s·m² (36 perms) | ASTM E96 |
| Compressive Resistance | 8 psi (56 kPa) @ 10% deformation 20 psi (141 kPa) @ 25% deformation |
ASTM C165 |
| Corrosion Resistance | Corrosiveness to Steel – Pass Corrosiveness to Aluminum – Pass |
ASTM C665 |
| Fungi Resistance | Does not support fungi growth | ASTM C1338 |
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.
