ROCKWOOL SP Firestop Systems  


The SP FireStop Slab® has been specifically designed to form cavity fire stops within buildings. It is a one-piece system enabling easy cutting and installation, and also provides a unique lateral compression to facilitate a tight fit. The SP FireStop Slab® can be installed horizontally or vertically and is suitable for cavity widths between 50mm and 400mm in both masonry and curtain wall constructions.


  • Up to 2 hours fire resistance 
  • Resists the passage of smoke 
  • Easy to cut and install 
  • Suitable for cavity widths up to 400mm