Sylwood
Sylwood Acoustic Underlay for Engineered Floors
Sylwood acoustic underlay is an innovative, high performance product ideal for acoustically upgrading existing buildings during renovation or new installation of wooden floors. Sylwood is a high density, low thickness recycled rubber mat made of SBR and cork granules, that dampens and absorbs noise transmission from footfall and other types of impact noise.
It is laid directly onto existing concrete screeds ready to receive the new wooden or laminate floor.
Sylwood acoustic underlay has an impact sound insulation improvement value of 20dB when it and the wooden floor are loose laid and an improvement value of 17dB when it and the wooden floor are glued using a suitable adhesive.
Features
- Minimal thickness
- For use under all types of wooden floor and laminates
- Easy installation
- Eco-friendly – manufactured from recycled materials
Slywood on Concrete Slab
Ln,w (Impact Sound Pressure Level) – 57dB
This figure measures how much sound reaches the receiving room. The lower the figure the better.
Rw ( Airborne Sound Transmission Loss) – 53dB
This figure refers to the ability of the floor to provide sound insulation. The higher the number, the better the sound insulation.
Slywood on Timber Joist
| Composition | Thickness | |
| 1 | Plasterboard x 2 | 25mm |
| 2 | 100mm Mineral wool 60kg/m3 | 100mm |
| 3 | Air Gap | 215mm |
| 4 | Joists with Plywood | 18mm |
| 5 | Sylwood 5 | 5mm |
| 6 | Laminate / Wooden Floor Finish | 22mm |
Ln,w (Impact Sound Pressure Level) – 61dB
This figure measures how much sound reaches the receiving room. The lower the figure the better.
Rw ( Airborne Sound Transmission Loss) – 52dB
This figure refers to the ability of the floor to provide sound insulation. The higher the number, the better the sound insulation.
Technical
Description
Acoustic insulation supplied in rolls and produced using granules of SBR (Styrene Butadiene Rubber) and Cork compacted using a polyurethane adhesive in a hot process. The colour of the product is black and brown and is supplied in rolls 20m long, 1.00m wide. Density is 700 kg/m2.
Application
Acoustic Insulation for reduction of impact sound/noise beneath wooden or laminate flooring
| Description | Standard | Sylwood 3 | Sylwood 5 | |
|---|---|---|---|---|
| Thickness | mm | 3 | 5 | |
| Density | Kg/m3 | 700 | 700 | |
| Impact Sound Improvement ( ΔLw) | dB | ISO 140-8 | 20dB (*) | 20dB (*) |
| Impact Sound Improvement ( ΔLw) | dB | ISO 140-8 | 17dB (*) | 17dB (*) |
| Thermal Conductivity Coefficient (λ) | W/m°K | EN 12667 | 0.12 | 0.12 |
| Fire Resistance | DIN 4102 | B2 | B2 |
* 140mm Concrete floor, levelled screed 50mm, Sylwood loose laid on the screed, 15mm wooden flooring floated on the Sylwood mat
** 140mm Concrete floor, levelled screed 50mm, Sylwood glued to the screed, 15mm wooden flooring glued to the Sylwood mat
Installation
Sylwood impact sound insulation can be either glued or loose laid on top of the screed. It is disconnected from the perimeter walls with a self adhesive flanking strip. The wooden floor or laminate is then laid directly on the sound insulation mat.
With Adhesive
Without Adhesive