Premium Insulation Rolls

1.0 Product Charateristics

1.1 Product Image: See picture.

1.2 Product Description: Sheep Wool Insulation Premium is a dark-grey coloured wool based thermal / acoustic insulation product, suitable for use in a variety of construction situations and is available in a variety of dimensions.

1.3 Raw Materials: Pure New Sheep’s Wool, Thorlan IW insect protection.

1.3.1 Wool: Wool used in the creation of the product is pure new sheep’s wool. The wool is primarily fine black fleece wool, sourced from Ireland, the UK and continental Europe. Black wools maintain all the desirable characteristics of white wools, but are less expensive due to limitations of the colour in the dying process. The final colour of the product is dependent on the blend used during production and is likely to vary. Wool fibres have many overlapping scales which make them very flexible and create a memory-effect, where after significant compression, wool will return to its original shape. Wool fibres are hygroscopic by nature and will have a moisture weight content of up to 35%, dependent on the relative humidity of the surroundings. While absorbing this moisture, wool releases energy in the form of heat, thus raising the temperature of its surrounding areas. Naturally releasing this moisture in the warmer seasons, wool creates a cooling effect on the same surroundings.

1.3.2 Borax: A naturally occurring, non volatile salt, Borax is used throughout the construction industry due to its many inherent advantages. Borax used in Sheep Wool Insulation acts primarily as a pest-repellent by inhibiting the development of beetles, moths, ants and cockroaches. Borax is practically non toxic to birds, fish, aquatic invertebrates, and relatively non toxic to beneficial insects. Borax also enhances the fire rating of construction materials as well as preserving the materials over time.

1.3.3 Rubber: A natural latex rubber solution is used in the post-scouring (washing) stage of production. The rubber solution is applied hot and allows a coating of Borax (1.3.2) to be applied to each fibre and to stay with the product for its lifetime. The rubber coating is porous in nature and does not interfere with the hygroscopic characteristics of the wool fibres. The addition of the rubber coating also increases the memory-effect of the product as mentioned in 1.3.1.

1.4 Product Dimensions: The following product dimensions are standard production sizes. Custom lengths, widths and thickness are produced on request.

1.5 Product Density: Nominal density of ~22 kilograms per cubic metre (~25kgm-3)

2.0 Tests and Investigations

2.1 Thermal Conductivity:  Thermal conductivity values of Sheep Wool Insulation Premium has been measured as follows:

Measured Thermal Conductivity (λ): 0.0354 W/mK
Thermal Conductivity – incorporating 5% tolerance (λ): 0.0370 W/mK
Thermal Conductivity – CE Certification Standard (λ): 0.0390 W/mK

2.2 Sound Insulation Performance (Graphed vs. Mineral Wool):

2.3 Flame Retardancy:  Sheep Wool Insulation Comfort has achieved a B2 fire protection classification in accordance with DIN 4102.  CBE Test equivalent: E

2.4 Product Certification: Sheep Wool Insulation is certified for use in walls, floors, roofs and ceilings under the European Technical Approval (ETA) 03/0035. The product is certified to carry the CE mark, for distribution throughout EU member states. Sample Label shown below:

2.5 Technical Data Table: