Fire Rated Assemblies

Cem-Rock® - Top quality cement board

Cem-Rock® boards are an ideal solution to build fire rated assemblies for both walls and floor applications.

The boards are A1 fire rated and were tested in the assemblies achieving up to 2 hours fire resistance. 


Note: Below information is for illustrative purposes only. Please contact our Technical department for full specification.

EI60 rating

tested to EN 1364-1 and BS 476-22

  • 15mm Fireline Plasterboard
  • 100mm mild gauge steel studs with 25kg/m3 mineral wool infill
  • 12mm Cem-Rock®

EI60 rating

tested to EN 1364-1

  • 15mm Fireline Plasterboard
  • 90mm mild gauge steel studs with  28kg/m3 mineral wool infill
  • 12mm Cem-Rock® eXtreme X4
 
* EI90 rating when exposed from 12mm Cem-Rock® eXtreme X4 side

EI60 rating

tested to EN 1364-1

  • 12mm Cem-Rock® eXtreme X4
  • 89mm timber studs with 27kg/m3 mineral wool infill
  • 9mm Cem-Rock® eXtreme X4
 
* EI90 rating when exposed from 12mm Cem-Rock® eXtreme X4 side

EI90 rating

tested to EN 1364-1 and BS 476-22

  • 2x 15mm Fireline Plasterboard
  • 150mm mild gauge steel studs with 22kg/m3 mineral wool infill
  • 12mm Cem-Rock®

90min insulation and 120min integrity rating

to BS 476-20 and BS 476-22

  • 12mm Cem-Rock®
  • 75mm light gauge steel studs with 100kg/m3 mineral wool infill
  • 12mm Cem-Rock®

EI120 rating

tested to EN 1364-1

 

  • Skim coat (exposed side)
  • 2x 15mm Fireline Plasterboard
  • 150mm timber studs with mineral wool infill
  • 12mm Cem-Rock® eXtreme X4
  • 15mm Fireline Plasterboard
  • Skim coat

REI120 rating

tested to EN 1365-1

  • Skim coat
  • 15mm Fireline Plasterboard
  • 12mm Cem-Rock® eXtreme X4
  • 150mm timber studs with mineral wool infill
  • 12mm Cem-Rock® eXtreme X4
  • 50mm vertical battens
  • 12mm Cem-Rock® eXtreme X4

60min rating

tested to ASTM E119

  • 5/8″ Type X Plasterboard
  • 4″ timber studs with 0.88 lb/ft3 mineral wool infill
  • 1/2″ Cem-Rock® eXtreme X4 (exposed side)

120min rating

tested to ASTM E119

  • 2x 1/2″ Cem-Rock® eXtreme X4
  • 3 5/8″ steel studs with 0.82 lb/ft3 mineral wool infill
  • 2x 1/2″ Cem-Rock® eXtreme X4

120min rating

tested to ASTM E119

  • 2x 5/8″ Type X Plasterboard (exposed side)
  • 4″ timber studs with 0.88 lb/ft3 mineral wool infill
  • 1/2″ Cem-Rock® eXtreme X4
  • 7/16″ Siding Panels

REI45 rating

tested to EN 1365-2

  • 20mm Cem-Rock® eXtreme FLOOR
  • 219mm SpaceJoist™ Floor Joists
  • 15mm Plasterboard
 

120min rating

tested to ASTM E119

  • 3/4″ Cem-Rock® eXtreme FLOOR
  • 8″ Steel Floor Joists with mineral wool infill
  • 1/2″ Resilient channels
  • 2x 5/8″ Type C Plasterboard