Thermafleece wool insulation : Wool is a natural fibre from a fully renewable resource, consequently the life cycle of the product has an ideal energy balance. THERMAFLEECE is manufactured to a density of 25kg/m3 giving a K-value of 0.039 W/m.K. Because of its ability to rapidly absorb and release water vapour, THERMAFLEECE wool insulation can help to keep buildings cool in summer and warm in winter.
COOL IN SUMMER. When the outside temperature increases and begins to heat the wool, it releases moisture; that has a cooling effect on the fibre which reduces the flow of heat to the inside of the building. This can reduce peak temperature by up to 7ºc when compared to buildings in which alternative forms of insulation are installed.
WARM IN WINTER. In the winter the absorption of moisture by wool insulation can increase peak temperature by up to 4ºc when compared to buildings in which alternative forms of insulation are installed.
NATURALLY BREATHABLE THERMAFLEECE, being hygroscopic, can absorb and desorb water vapour without compromising its thermal efficiency. It is therefore ideal for use in roofs and timber framed walls designed to avoid a damaging build-up of moisture by allowing water vapour to migrate through the structure. In this type of construction, THERMAFLEECE is the perfect partner for a vapour-permeable breather membrane used on the cold side of the thermal insulation to prevent the infiltration of cold air and wind driven rain and dirt. Heat loss by convection is also substantially reduced because the insulation is protected by the breather membrane preventing air movement across the surface.
CONDENSATION CONTROL. Wool generates heat when it absorbs moisture from the air. That energy is known as the heat of sorption and accounts for the warmth felt by wearers of woollen clothes in winter conditions. When the air is saturated with water vapour, wool absorbs some 40% of its dry weight in moisture, producing 960 kilojoules of heat energy for every kilogram of dry wool. This warmth is not noticeable inside the building but it acts to prevent condensation in construction cavities by maintaining the temperature above the dew-point in damp conditions.
ENERGY EFFICIENT - totally safe. The cleaning, air-laying and thermal bonding processing during the manufacture of THERMAFLEECE consumes minimal energy. THERMAFLEECE uses only 14% of the embodied energy that is used to manufacture glass fibre insulation, therefore paying back its manufacturing energy cost seven times faster than glass fibre. THERMAFLEECE is harmless and can be installed without gloves or protective clothing. It is not irritating to the skin, eyes or respiratory tract and causes no discomfort to site workers during installation. Any fibres which happen to reach the living space will present no hazard to health. The necessary insect proofing and fire resistance rating is achieved by the inclusion of naturally derived additives.
EXTREMELY DURABLE. The fibre adapts to the shape of rafters, joists and studs to provide a permanently tight fit. Properly installed, THERMAFLEECE will retain its low density and thermal performance - with a life expectancy similar to that of the construction in which it is installed.
RECYCLABLE. At the end of its useful life, THERMAFLEECE can be recycled for other environmentally friendly applications. THERMAFLEECE contains no permethrin, pyrethroids, pesticides or formaldehydes.
Technical Data. The low thermal conductivity of THERMAFLEECE (0.039W/m.K) compares favourably with that of other fibrous insulants. The product contains a necessary lofting agent to maintain fibre stability. THERMAFLEECE is manufactured in batts of 1200 mm long and either 400 mm or 600 mm wide. A range of three thicknesses are available - 50 mm, 75 mm and 100 mm enabling any overall insulation depth to be achieved by combining different thicknesses.
THERMAFLEECE is sold in packs - 50 mm thick covers 20.16 m2, 75 mm thick covers 12.96 m2 and 100 mm thick covers 10.08 m2.
FIRE RESISTANCE. Wool has a higher fire resistance than cellulose and cellular plastic insulants; it does not burn but rather melts away from an ignition source and extinguishes itself. THERMAFLEECE is treated with a natural fire-proofing agent to improve its intrinsic fire resistance and comply with BS 5803-4 (Spread of Fire) achieving results of zero for ignitability, spread of flame and heat evolved.
ACOUSTIC. Thermafleece has been tested for its acoustic properties, which means that it can now be specified as part of your noise control scheme
Sound Insulation. As well as providing thermal insulation when used in the construction of a partition wall, Thermafleece adds a significant amount of sound insulation.
Thickness in mm ThermalRes.
50 1.29
75 1.94
100 2.58
150 3.87
200 5.16
250 6.45
Performance/Testing - International Standards. Energy consumption in manufacture 14.6 MJ/jg or 136MJ/m3. Thermal conductivity 0.039W/m.k. Water absorbtion (@ 100% RH) 40%. Mould resistance 0 NORM B6010. Moth/beetle proofing based on ISO 3998. Ignition point 560ºC. Spread of Fire BS 5803-4
product options:
P50400:. Batt size 50mm*400mm*1200mm. Batt quantity = 42 Batts. Pack area = 20.16m2
P50600:. Batt size 50mm*600mm*1200mm. Batt quantity = 28 Batts. Pack area = 20.16m2
P75400:. Batt size 75mm*400mm*1200mm. Batt quantity = 27 Batts. Pack area = 12.96m2
P75600:. Batt size 75mm*600mm*1200mm. Batt quantity = 18 Batts. Pack area = 12.96m2
P10040:. Batt size 100mm*400mm*1200mm. Batt quantity = 21 Batts. Pack area = 10.08m2
P10060:. Batt size 100mm*600mm*1200mm. Batt quantity = 14 Batts. Pack area = 10.08m2
It is also possible to have a Batt size of 100mm*300mm*1200mm produced but the delivery time for this order is 2-3 weeks. Batt quantity = 14 Batts. Pack area = 10.08m2. .Product Thermafleece wool insulation
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