CTF-05: Stone Wool

CTF-05 is non-combustible, class A1 rated, stone wool uniform and tapered insulation used in warm roof applications under suitable waterproofing system. Drainage falls (from 1:240-1:40) can be easily created. The insulation provides excellent thermal and acoustic performance.




  • A1 non-combustible
  • High acoustic performance 
  • Versatile 
  • Unlimited tapered falls
Technical Data


Reaction to fire A1  EN 13501-1 
Thermal conductivity @10%c 0.039W/m²K     EN 12667 
R-value   @10%c 2.9m²k/ W  EN 12667 
Density   +/-10%  160-200kg/m³  EN 1602 
Compressive strength  @10% defformation 60kpa-80kpa  EN 826
Behaviour  Under point load  500N  EN 12430 
Tensile  perpendicular to face  10kpa  EN 1607 
Length   600mm-1200mm  +/-2% EN 822 
Width   1000mm-1800mm  +/- 1.5% EN 822 
Thickness (mm) 30mm-120mm  -3% / +5% EN 8223 
Vapour transmission  MU1  EN 12086 
Water absorption  1gm/m² max  NPD  EN 1609 


  • Warm roofs
  • Fully bonded or mechanically fixed 


3rd Party Accreditation