Rockwool Steprock Super

STEPROCK SUPER boards are designed for thermal and acoustic insulation of floors on the ground, as well as acoustic insulation of floors in residential areas, offices, hospital rooms, hotels and others. These boards are made from non-combustible stone wool, that significantly reduce the level of impact and airborne sound transmission between rooms. Their low thermal conductivity coefficient also allows them to be used as thermal insulation for floors on the ground. They can be used with any substrate, whether cement, anhydrite or dry - such as OSB-3 or fibre cement boards.

Technical parameters

• Thermal conductivity coefficient - λD = 0,035 W/mK
• Compressive stress at 10% deformation - CS(10) ≥ 25 kPa
• Dynamic stiffness SD [MN/m³]:
  • 40 for 20 mm
  • 22 for 30 mm
  • 20 for 40 mm
  • 20 for 50 mm
• Compressibility - ≤ 3 mm
• Short-term water absorption - WS ≤ 1 kg/m²
• Long-term water absorption - WL(P) ≤ 3 kg/m²
• Dimensional stability at elevated temperature (70°C) - DS(70,-) ≤ 1%
• Water vapour permeability - MU1 μ = 1
• Value of thermal conductivity as a function of ageing - λ = 0,035 W/mK
• Durability of reaction to fire as a function of heat, weathering, ageing/degradation - A1
• Dead weight characteristic load – 1,50 kN/m³
• Standard - EN 13162:2012+A1:2015
• CE certification - 1023-CPR-1211 P

Application

• Insulation of floors on the ceiling on cement bases with a minimum weight of 90 kg/m²
• Floor insulation on anhydrite subfloors with a minimum weight of 90 kg/m²
• Thermal insulation of floors on OSB-3 sub-floors
• Thermal insulation of floors on fibre cement board ceilings
• Insulating floors on the ground

Logistics and packaging