ROXUL Safe®
ROCKWOOL ROXUL Safe® is a stone wool fireblocking insulation designed to fill perimeter gaps between concrete floor slabs and exterior wall systems, between firewalls and ceiling slabs, through penetrations, and around conduit pipes and duct openings.
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Popular applications
- Exterior wall insulation
- Fire protection insulation
- Perimeter fire containment insulation
About this product
ROCKWOOL ROXUL Safe® is a stone wool insulation used in fire-stopping applications. It is designed to fill perimeter gaps between concrete floor slabs and exterior wall systems, between firewalls and ceiling slabs, and around conduit pipes and duct openings through walls and floor slabs.
ROXUL Safe is noncombustible and fire resistant, and will not develop toxic smoke or promote flame spread. This product is a component of ASTM E2307 tested and approved perimeter fire containment systems.
- Noncombustible and fire resistant
- Firestopping material
- Dimensional stability to maintain performance
- Inorganic, does not promote mold growth
- Water and moisture repellent
Why use stone wool insulation
- Noncombustible and fire resistant, stone wool works to contain a fire and prevent its spread.
- Will not develop toxic smoke or promote flame spread, even when exposed directly to a fire.
- Water repellent to resist absorption and enhance an assembly's drying potential.
- Nondirectional fiber orientation helps absorb sound moving between interior spaces and noise from the exterior.
- Dimensionally stable, stone wool does not expand or contract due to temperature variances.
Applications
- Engineered for fire-rated joints, through penetrations and perimeter fire containment systems.
- Designed to be compression fit within joints and penetrations.
- Always used in conjunction with a fire sealant in tested and approved systems.
Product certificates
UL Classified - CA/USA
ETL Intertek Listed - CA/USA
Declare
ROXUL Safe® sizes, dimensions & packaging
ROXUL Safe® thickness, width, length and pack quantities—everything you need for accurate specification and ordering.
- All
- 1.5
- 2
- 3
- 4
- 5
- 6
Specifications & testing
ROXUL Safe® specifications and test results, based on relevant industry standards.
| Name | Value | 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 description | Minimum Density - 4.0 lbs/ft³ (64 kg/m³) | |
| Determination of Fungi Resistance | Passed | ASTM C1338 |
ROXUL Safe® technical documents & resources
ROXUL Safe® technical documents and resources, including the product data sheet, to support accurate specification and efficient project planning.
ROXUL Safe fire safing insulation - Data sheet
ROCKWOOL ROXUL safe application guide
ROXUL Safe_072116 Blanket Insulation GUIDESPEC EN_US
ROXUL Safe_072116 Blanket Insulation GUIDESPEC EN_CA
Guidelines for cutting stone wool insulation
Perimeter fire containment system - Product and service guide
ROCKWOOL offers a variety of products for UL and Intertek listed perimeter fire containment systems, including Curtainrock® 40/80 and ROXUL Safe®. Learn more about these products, the fire resiliency advantage and the role our stone wool insulation plays in a comprehensive set of ASTM E2307-tested systems.
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Curtainrock®
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Product support & insights
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