Rockwool Fire Barrier
Fire stopping solution for pitch roof voids, heads of walls and concealed ceiling spaces to slow the spread of flames and smoke.
Offers fire resistance upto 2 hours.
Can be used in voids up to 10.5m high.
Non-combustible – Euroclass A1.
Patented quick fit system providing fire resistance for up to 1 hour.
Made from diabase rock, which is a renewable and plentiful natural resource.
Does not contain gases that have ozone depletion potential (ODP) or global warming potential (GWP).
Thicknesses and Availability:
This Rockwool Range includes the following readily available product thickness: 50mm.
The following thickness will need to be sourced from the manufacturer and may have minimum order requirements: 60mm.
Product Information
General information about Rockwool Fire Barrier
Product Application
Prevents the spread of fire and smoke
Rockwools fire barrier system, Rockwool Fire Barrier, is suitable for use in pitch roof voids, heads of walls and concealed ceiling spaces where the prevention of spread of fire and smoke is required.
Product Make-up
Core
Durable non-combustable stone wool spun from volcanic rock, compressed and resin bonded into slabs
Facings
Unfaced and foil-faced options are available
Product Properties
| Thickness | 50mm to 60mm | |
| Roll Length | 3.7m and 3m (dependant on thickness) | |
| Roll Width | 1m |
Product Prices
Buy Rockwool Fire Barrier
Limited stock of the plain Rockwool Fire Barrier 50mm is held at most of our depots. Where we need to bring stock in from the manufacturer, please allow up to 2 weeks for delivery
- Generally 1 or 3 working days for delivery
- Generally 1 to 5 working days for delivery
- Generally 5 to 10 working days for delivery
- Special request or made to order item, allow extended lead times. Minimum order levels may apply.
- Please call to check availability and approximate lead times
Product availability depends upon stock levels at closest depot and delivery logistics to geographic locations
Product Performance and Guides
Product Performance, Manufacturer Downloads, and Installation Guides
Product Performance
| Fire Performance | Classification A1 | BS EN 13501-1 |
| Surface Spread of Flame | Non-combustable |
Fire Performance
For further information on the below table, please see the Rockwool Fire System datasheet.
| Rating | Integrity | Insulation | Specification |
|---|---|---|---|
| 30 min cavity barrier | 30 min | 15 min | Fire Barrier 50mm1 |
| 30 min fire barrier | 60 min | 30 min | Fire Barrier 60mm2 |
| 60 min fire barrier | 60 min | 60 min | 2 x Fire Barrier 50mm3 |
| 90 min fire barrier | 90 min | 90 min | 2 x Fire Barrier 50mm4 |
| 120 min fire barrier | 120 min | 120 min | 2 x Fire Barrier 60mm5 |
Acoustic Performance
The correct use of Fire Barrier within structural cavities and voids will reduce the level of transmitted sound.
- Rw= up to 30db for typical lay-in grid suspended ceiling
- Rw= up to 42db for ceiling and Rockwool Fire Barrier 50mm
- Rw= up to 44db for ceiling and Rockwool Fire Barrier 50mm Foil Faced
- Rw= up to 50db for ceiling and 2 x layers of Rockwool Fire Barrier 50mm Foil Faced
For specific acoustic requirements please contact ROCKWOOL Technical Solutions.
Product Certificates
Please visit the Rockwool website for product certificates.