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This page highlights the technical specifications of Sheep Wool Insulation products.
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Premium Thermal / Acoustic Insulation Rolls: Technical Data
1.0 Product Details
1.1 Product Image:
1.2 Product Description: Sheep Wool Insulation
Premium is a dark-grey coloured wool based material, treated with
a natural rubber and borax solution forming rolls of required
length, width and thickness.
1.3 Raw Materials: Sheep’s Wool (>90%),
Borax Salt (<10%), Natural Rubber (<10%), Calcium Oxide,
Iron Oxide, Alumina (<1%).
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.
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Product
Code
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Thickness-T
(mm)
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Width-W
(mm)
|
Length-L
(mm)
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Area
(m2)
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IR400x60x6
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60
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400
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6000
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2.40
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IR400x80x5
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80
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400
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5000
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2.00
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IR400x100x4
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100
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400
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4000
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1.60
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IR600x60x6
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60
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600
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6000
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3.60
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IR600x80x5
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80
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600
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5000
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3.00
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IR600x100x4
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100
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600
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4000
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2.40
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1.5 Product Density: Nominal density of 25
kilogrammes per cubic metre (25kgm-3)
1.6 Patents: Patents granted for the manufacturing
process of Sheep Wool Insulation, under patent no. 4339078
2.0 Tests and Investigations
2.1 Thermal Conductivity: Thermal conductivity
values of Sheep Wool Insulation has been measured by the Forschungsinstitut
für Wärmeschutz in Munich, Germany. Test results measured
on the 15/11/2001 with test certificate no. Z-23.1.3-267.
FIW Measured Thermal Conductivity (lambda): 0.0354 W/mK
Accepted Thermal Conductivity – incorporating 5% tolerance (lambda):
0.0370 W/mK
CE Harmonised Conductivity: 0.0390 W/mK
2.2 Flame Retardancy: Sheep Wool Insulation
has achieved a B2 fire protection classification in accordance
with DIN 4102. This test conforms with and passes Sheep Wool
Insulation for EN ISO 11925-2 flame retardancy testing.
2.3 Sound Insulation: The sound insulation
performance for Sheep Wool Insulation starts at 44 dB for a
60mm standard insulated partition wall and climbs to 53 dB for
a 100mm insulated high density partition.The graph below demonstrates
the superior sound absorbtion performance of Sheep Wool Insulation
compared to that of Mineral Wool over a range of frequencies
on a standard 60mm standard partition wall.
2.4 Technical Data Table:
| Energy consumption in manufacture |
~ 15 Kwh/m³ (Convert
it) |
| Thermal conductivity |
0.039 W/mK |
| Water absorption @ 100% RH |
~ 35% |
| Ignition point |
560 °C |
| Fire resitance classification (DIN 4102) |
B2 |
| Mould resistance (ICE 68/2-10) |
0 (best result) |
| Moth and beetle proofing |
EPA SOP 002 092 |
| Density |
~ 25 kg/m³ |
| Water vapour diffusion resistance (DIN 52615) |
µ = 1 |
| Sound absorption (DIN 52212: s = 120mm) |
0.95 @ 500 Hz |
3.0 Applications
Delivery and Site Handling: The rolls are delivered
to site in large clear polythene bags. The number of rolls
per bag is dependant on width characteristics, where 400mm
wide rolls are 3 per bag and 600mm wide rolls are 2 per bag.
The bags are labelled with company contact information, product
dimensions and technical specifications. Bag labels are colour
coded to facilitate easy handling during installation. The
product should be stored under cover, and out of contact with
ground moisture. The product or packaging must not be exposed
to naked flame or other ignition sources.
3.1 Installation: Sheep Wool Insulation can
be installed in a number of areas of various building types.
The sections on the following pages demonstrate where and
how the material is installed.
3.2 Traditional (Cold Roof) Application
3.3 Dormer Style (Warm Roof) Application
3.4 Timber-frame Wall (Brick Outer Skin)
3.5 Timber-frame Wall (Tiled Outer Skin)
3.6 Timber-frame Wall (Board Outer Skin)
3.7 Intermediate Timber Floor
3.8 Suspended Timber Floor
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Are you building a timber frame home, log home or creating additional living space with the above companies? Now you can specify Sheep Wool Insulation
as your preferred material. Contact us for more information... |
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