
Material · Membranes and materials
VELAPHONE® CONFORT
SOPREMA · Impact noise
Impact sound underlay: a glass-fibre mat bonded onto bitumen, protected on top by a plastic film. Laid under concrete screed, tiles or parquet. Reduces footstep noise by ΔLw 19 dB.
Advantages
- High impact sound insulation
- Resistant to compression and tearing
- Built-in self-adhesive strip for secure overlaps
- Resistant to most chemical agents
Variants and packaging
| Product | Code | kg/m² | mm | Roll, m | Per pallet |
|---|---|---|---|---|---|
| VELAPHONE® CONFORT | 00033839 | 0.645 | 2.5 | 20 × 1 | 600 m² (30 rolls) |



