ISOLENA acoustic underlay insulation

Density: 100 kg/m³
Application: Floor
Our ISOLENA impact sound insulation consists of 100% with Ionic Protect® protected wool and is renewable, durable, recyclable and made without synthetic additives.
- Footfall and impact sound insulation under floating floors.
- Insulation with soda kraft paper on the top for improved laying function.
- Suitable for underfloor heating.
- Very good Walking comfort.
- To the further processing lay the impact sound insulation with the kraft paper over the entire surface.
Delivery form
Article number | Thickness mm | Width mm | Length mm | pcs/ pack | m²/ pack | kg/ Pack | pcs/ pallet | Packs/ pallet | m²/ pallet | Ldm/ pallet |
---|---|---|---|---|---|---|---|---|---|---|
150025 | 3.5 | 1 000.00 | 25 000.00 | 1 | 25 | 11.2 | Pal22 | 22 | 550 | 0.55 |
Special sizes and formats on request.
Technical data
Feature | Value |
---|---|
Vapour diffusion resistance coefficient μ EN ISO 12572 | 1 |
Specific heat capacity c | 1760 J/kgK |
Length-related flow resistance according to EN 29053-1 | r = 10.2 kPa s/m² |
Fire behaviour according to EN 13501-1 | C-s2, d0 |
Mould growth intensity according to EAD 040005-00-1201 Annex B | 0 |
Nature Plus® eco-label | Certificate 0103-1006-099-1 |
Detailed data in natureplus database.org | Access Baubook data here |
We are happy to send specific examination certificates on request.
Certificates & test seals


Ecological parameters
ISOLENA insulation materials have the following ecological characteristics according to natureplus® life cycle analysis report:
- Use non-renewable primary energy excluding the non-renewable primary energy sources used as raw materials
(PENRE; MJ, lower calorific value): 23.44 MJ/kg - Global warming potential Sum of GHG emissions and CO2 storage (GWP 100 sum): 0.83 kg CO2-equiv./kg
- Acidification potential of soil and water (AP): 4.63E-03 kg SO2-equiv./kg
- Potential for the formation of tropospheric ozone (POCP): 8.04E-04 kg C2H4-equiv./kg
- Eutrophication potential (EP): 2.08E-03 kg PO4³-equiv./kg
More about the product
This is how it works! Installation videos To make the installation of our ISOLENA products as easy as possible for you, we have...
Sheep's wool is the only naturally occurring insulating material that both keeps you warm and protects you from heat, cold and moisture. The uniqueness of the raw fibre sheep's wool also makes it a material with unique, natural advantages in its end product. At ISOLENA, our commitment, research and development provide even more benefits.
The decision in favour of the right insulation depends on many criteria, including the durability of the insulation material. After all, insulation is permanently installed and replacing it is time-consuming, expensive and nerve-wracking. Effective, durable and healthy wool protection that keeps pests away is an important aspect when choosing sheep's wool insulation.