Materials for walls — sound insulation, absorption and heat
Walls involve two separate problems: sound passing from one room to another (fixed with a sound-insulating wall system) and echo inside a room (fixed with absorption on the wall surface). Sun-exposed walls can also take insulation in the cavity to reduce heat.
Common problems
Types of material used
Cavity insulationStone or glass wool inside drywall partitions, improving the system's sound insulation
Absorption panelsFixed on the wall surface to reduce echo in the room
Suitable products
Building thermal insulation
Building thermal insulation · PE foam
M-PE M-PE (Standard)
- Thickness
- 3–20 mm
- Density
- 35–45 kg/m³
- Thermal conductivity (λ)
- 0.029 W/m·K
Building thermal insulation · Glass wool
Microfiber Micro WelEco
- Thickness
- 50–75 mm
- Density
- 16–64 kg/m³
Building thermal insulation · Stone wool
ROCKWOOL Rock Air
- Thickness
- 50–75 mm
- Density
- 30 kg/m³
- Thermal conductivity (λ)
- 0.035 W/m·K
Building thermal insulation · Stone wool
ROCKWOOL Thermalrock S
- Thermal conductivity (λ)
- 0.034–0.036 W/m·K
- Sound absorption (NRC)
- 0.90–1.05
Sound insulation
Sound insulation · Stone wool
ROCKWOOL Safe 'n' Silent Pro
- Thickness
- 25–100 mm
- Density
- 40–100 kg/m³
- Sound absorption (NRC)
- 0.90–1.00
Sound insulation · Glass wool
SCG Cylence ZoundBlock
- Thickness
- 50–100 mm
- Density
- 32 kg/m³
- Thermal conductivity (λ)
- ≤ 0.033 W/m·K
Sound absorption
Sound absorption · Polyester fibre
ISO NOISE ISO TONE
- Thickness
- 25–50 mm
- Sound absorption (NRC)
- 0.69–0.86
Sound absorption · Glass wool
SCG Cylence Zandera
- Thickness
- 25 mm
- Density
- 100 kg/m³
- Sound absorption (NRC)
- 0.75
Sound absorption · Glass wool
SCG Cylence Zoftone
- Thickness
- 25–50 mm
- Density
- 32–64 kg/m³
- Sound absorption (NRC)
- up to 1.00
Installation accessories
Further reading
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