ROXUL Safe® 55 & 65
ROCKWOOL ROXUL Safe® 55 & 65 are stone wool insulation boards approved for use in metal building assemblies where a 1- or 2-hour fire resistance rating is required from one side or both sides of the wall.
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Popular applications
- Metal building insulation
About this product
ROCKWOOL ROXUL Safe® 55 & 65 are stone wool insulation boards for exterior and interior non-load-bearing, steel-faced firewall applications where a fire resistance rating is required. It is approved for use in UL and ULC 1- and 2-hour fire rated systems.
ROXUL Safe 55 & 65 are noncombustible, and will not produce toxic smoke or promote flame spread. ROCKWOOL offers single- or double-sided fire-rated assemblies, and is ideally suited for zero lot line applications where buildings are in close proximity.
- Noncombustible and fire resistant
- Available in 1 and 2-hour rated assemblies
- Excellent acoustic performance
- Water and moisture repellent
- Inorganic, does not promote mold growth
Why use stone wool insulation
- Stable long-term R-values for superior thermal performance.
- Non-combustible and fire resistant, stone wool works to contain a fire and prevent its spread.
- Water resistant, stone wool does not rot or promote the growth of mildew, fungi or mold.
Applications
- Installed in metal buildings where a fire-resistance rating is required.
- A component of 1- and 2-hour fire resistance rated assemblies.
Product certificates
UL Classified - CA/USA
ROXUL Safe® 55 & 65 sizes, dimensions & packaging
Find ROXUL Safe® 55 & 65 thickness, width, length and pack quantities—everything you need for accurate specification and ordering.
- All
- 12.6
- 16.8
- All
- 3
- 4
Specifications & testing
Explore ROXUL Safe® 55 & 65 specifications and test results, based on relevant industry standards.
| Name | Value | Test standard |
|---|---|---|
| Mineral Fiber Block and Board Thermal Insulation | Type IVB Compliant | ASTM C612 |
| 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 |
ROXUL Safe® 55 & 65 technical documents & resources
Download ROXUL Safe® 55 & 65 technical documents and resources, including the product data sheet, to support accurate specification and efficient project planning.
ROXUL Safe 55 metal building insulation - Data sheet
ROCKWOOL ROXUL SAFE™ 55 is a medium-density stone wool insulation for exterior and interior non-load-bearing, steel-faced firewall applications where a fire resistance rating is required. It is approved for use in a 2-hour fire rated system
ROXUL Safe 65 metal building insulation - Data sheet
ROCKWOOL ROXUL SAFE™ 65 is a medium-density stone wool insulation for exterior and interior non-loadbearing, steel-faced firewall applications where a fire resistance rating is required. It is approved for use in a 1-hour fire-rated system.
ROCKWOOL ROXUL safe application guide
Building fire resistance is crucial, requiring systems that block flame and smoke to keep occupants safe.
ROXUL Safe 55 & 65 and ROCKWOOL Plus MB insulation for pre-engineered metal buildings
Stone wool insulation for exterior and interior steel-faced firewall applications. ROXUL Safe 55 and 65 products and solutions for tested and approved 1- and 2-hour fire-rated systems.
Guidelines for cutting stone wool insulation
Properly cutting stone wool insulation ensures fit and maintains performance, preventing safety and efficacy issues.
Dimensional stability of rigid board insulation products
Investigations often uncover irreversible dimensional changes in rigid foam board insulation, like EPS, XPS, and ISO.
Safe Use Instruction Sheet
This sheet gives safe handling instructions for non-regulated rockwool products.
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ROCKWOOL Plus™ MB
ROCKWOOL Plus™ MB is a stone wool insulation batt designed for use in pre-engineered metal building constructions where an hourly fire rating is not required.
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Product support & insights
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