Rockwool SP Firestop OSCB 44
Rockwool SP Firestop OSCB 44 is an open-state stone wool fire barrier that protects ventilated cavity façades while allowing normal airflow.
It combines a high-density stone wool core with an intumescent strip in a weather-resistant sleeve. In a fire, the strip expands to seal the cavity and block the spread of fire and smoke.
- Fire resistance up to 120 minutes (EI 120)
- Suitable for ventilated cavity widths up to 425 mm
- Intumescent strip activates automatically in fire conditions
- Weather-resistant sleeve for easy handling and installation
- High-density stone wool provides insulation and durability
- Designed for horizontal installation within approved rainscreen systems
Reliable fire protection for ventilated façades without compromising airflow.
SP Firestop OSCB 44 forms a secure barrier in ventilated cavities, maintaining compartment integrity during fire events. Its stone wool and intumescent strip work together for consistent performance.
Easy to install and compatible with approved rainscreen systems, it is suitable for new build and refurbishment projects, keeping ventilated façades both safe and functional.
In-House Metal Fabrications
Whether it’s a planned package or an urgent site requirement, our in-house fabrication team can manufacture roofing and cladding components to suit your project.
Our Partners
