Rockwool Linear Trapezoidal Firestop System

Firestop solution for linear joints at wall and floor junctions.

Download Specification

Linear and Trapezoidal Firestop products are made from dense, moisture resistant stone wool, allowing adequate compression yet retaining the necessary lateral stiffness for ease of installation.

The Linear and Trapezoidal Firestop System can be manufactured to suit a wide range of steel profile dimensions. All Firestop products are supplied in standard lengths of 1m.

• Rectangular strips (installed under min. 5% compression)
• Thicknesses: 12.5, 20, 30, 40, 50, 60, 70, 80, 90, 100mm
• Widths: 100, 150, 200, 300, 400mm
• Fire resistance: Up to 4 hours Trapezoidal Firestop 2B
• Trapezoidal strips (tight fit required) Available for all profiled decks. Deck profile to be named at time of order, e.g. Ribdeck 60, Alphalok etc. Dovetail Infill Firestop Strip
• Supplied as narrow rectangular strips for pinched installation into nominated dovetail shaped deck profiles; e.g. Holorib, Quickspan, Q51


Linear and Trapezoidal Firestop Systems have been developed to provide up to 4 hours firestopping at the junctions of compartment walls and floors. Solutions illustrated are for masonry walls with a density of at least 400 kg/m3 and include both fire integrity and insulation criteria for concrete decks, composite decks and simple profiled sheeting.

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