Grei – Underscreed Impact Sound Insulation
Grei – Underscreed Impact Sound Insulation
Grei acoustic insulation is a unique range of high performance, innovative soundproofing, suitable for high quality building applications particularly when used with underfloor heating systems.
The use of special SBR fibres and EPDM rubber granules coupled with their unique distribution ensure excellent elasticity making it the ideal solution for impact noise through floors. This strong and resilient mat adapts perfectly to floor surfaces and is extremely easy to install.
Grei acoustic insulation is also manufactured using technology that ensures a low environmental impact making the product very eco-friendly. In fact Grei has a recycled EPDM/SBR rubber material content of over 88% and is certified VOC free. Impact sound reduction values of up to 30dB is possible using Isolgomma Grei under screed impact sound insulation mats.
Features
- High insulation at minimum thicknesses (up to ΔLw 30dB)
- Acoustic performance levels are constant over time
- No acoustic degradation under compression
- Ecofriendly – made from 88% recycled material
- VOC free
- Manufactured from SBR fibres and EPDM rubber granules
- 20% superior performance than polyethylene products
- 25% superior performance than other “high density” under screed products
- 7mm thick
- Grei can be used as an anti-vibration insulation layer under a floating screed
- Durable material
- Quick and easy installation
- Regupol E48 equivalent
Application
- Suitable for use with underfloor heating
- Floors with floating screeds
- High thickness screeds
- Vibration insulation of plant room
- Adaptable for timber floor joists
Installation
Techincal Details
| Features | Standard | Unit | Value |
| Thickness | EN 12431 | mm | 7 |
| M2 / Roll or Sheet | mm | 5 | |
| Dimension (m) (l x w) | EN 822 | m | 5 x 1.04 |
| db Rating (L) | EN ISO 10140 EN ISO 717-2 | ∆Lw | 24 |
| Dynamic Stiffness (MN / m3) | EN 29052-1 | MN/m3 | 8 |
| Compressibility (mm) | EN 12431 | Mm | 1.7 |
| Thermal Conductivity Coefficient λ | EN 12667 | W/mk | 0.064 |
| Weight kg / m2 | kg/m2 | 2.8 | |
| Weight per Roll / Sheet (kg) | kg | 14 | |
| Rolls / Pallet | QTY | 25 | |
| Recycled Contect (%) | % | 88 | |
| Reaction to fire | EN 13501-1 | E |