ROXUL Safe® 45
ROXUL Safe® 45 is a stone wool insulation board that is specifically engineered as a fire block material for concealed spaces of multi-unit residential buildings.
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Popular applications
- Interior insulation
- Fire protection insulation
- Separating party wall insulation
About this product
ROCKWOOL ROXUL Safe® 45 is a stone wool insulation board specifically engineered as a fire-blocking material for concealed spaces of multi-unit residential buildings.
Using ROXUL Safe 45 with ROCKWOOL Comfortbatt insulation creates a high-density “party” wall system that improves sound dampening and fire performance. It also reduces the time, labor and material costs usually associated with adding a double layer of gypsum over the wall studs.
- Noncombustible and fire resistant
- Excellent acoustic performance
- Dimensionally Stable
- Water and moisture repellent
- Inorganic, does not promote mold growth
Why use stone wool insulation
- Noncombustible and fire resistant, stone wool works to contain a fire and prevent its spread.
- Provides excellent noise reduction and sound absorption to help you create quieter, more productive environments.
- Lightweight and easy to install.
- Water resistant, stone wool does not rot or promote the growth of mildew, fungi or mold.
Applications
- Designed as a fireblocking material in concealed spaces
- Specifically engineered for Article 3.1.11.2 of the National Building Code of Canada
- Assembly solutions in multi-unit residential construction
Product certificates
ROXUL Safe® 45 sizes, dimensions & packaging
Find ROXUL Safe® 45 thickness, width, length and pack quantities—everything you need for accurate specification and ordering.
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Specifications & testing
Explore ROXUL Safe® 45 specifications and test results, based on relevant industry standards.
| Name | Value | Unit | Test standard |
|---|---|---|---|
| Mineral Fiber Block and Board Thermal Insulation | Type IVA Compliant | ASTM C612 | |
| Mineral Fiber Thermal Insulation for Buildings | Type 1 Compliant | CAN/ULC S702 | |
| Flame spread index | 0 | ASTM E84 | |
| Smoke Developed Index | 0 | ASTM E84 | |
| Combustibility of Materials at 750 °C | Non-combustible | ASTM E136 | |
| Determination of Non Combustibility of Building Materials | Non-combustible | CAN/ULC S114 | |
| Corrosion of Steel | Passed | ASTM C665 | |
| Density | 4.4 | lbs/ft3 | ASTM C167 |
| Density | 70 | kg/m3 | ASTM C167 |
| R-Value / inch @ 75 °F | 4.2 | hr.ft².F/Btu | ASTM C518 (C177) |
| RSI value / 25.4 mm @ 24 °C | 0.74 | m²K/W | ASTM C518 (C177) |
| Determination of Fungi Resistance | Passed | ASTM C1338 |
ROXUL Safe® 45 technical documents & resources
Download ROXUL Safe® 45 technical documents and resources, including the product data sheet, to support accurate specification and efficient project planning.
ROCKWOOL ROXUL safe application guide
Building fire resistance is crucial, requiring systems that block flame and smoke to keep occupants safe.
ROXUL Safe 45 residential party wall insulation - Data sheet
ROCKWOOL ROXUL Safe® 45 is a semi-rigid stone wool insulation board from ROCKWOOL that is specifically engineered as a fire block material for concealed spaces of multi-unit residential buildings.
Guidelines for cutting stone wool insulation
Properly cutting stone wool insulation ensures fit and maintains performance, preventing safety and efficacy issues.
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