Sheep wool insulation . Smart Technical Fibre.
Manages cold and hot conditions
Wool is a superb thermal insulator. That is what it evolved to do. It is comparable or better than either stone or glass "wool"
But it also manages warm conditions far better. It has a high Specific Heat Capacity and high thermal mass helping to keep your property cool in summer.
In other words sheep wool insulation is the smart choice no matter what the season
Helps manage damp, humidity and moisture
The exterior of a wool fibre is hydrophobic so it doesn't feel wet. The interior is hygroscopic meaning it can absorb moisture vapour in times of high humidity and release it in the form of heat in times of low humidity. Hygroscopic materials are very important in managing the health of the building and the health of occupants. Managing humidity within a building also has an effect on energy demand and therefore cost. Sheep wool insulation helps keep people comfortable and energy bills lower
Good for old and new buildings
Sheep wool insulation is fully breathable and can manage the conditions of both old and new buildings. Old buildings just love wool loft insulation
Healthy people
Sheep wool insulation absorbs and locks away Volatile Organic Compounds such as formaldehyde which are found in many common household goods. It therefore can contribute to a healthy indoor environment
TRUEWOOL® Loft Roll Data
R Values
Thickness mm Thermal Resistance m2 k/w
100 2.516
150 3.774
200 5.032
250 6.29
Sizes
Thickness 50mm, 75mm
Widths 400mm, 600mm
Length 8m
Performance
Thermal Conductivity EN12667 0.040W/mk
Ignition Point - >520°C
Flammability EN ISO11926-2 Pass
Reaction to Fire EN13501 Euroclass E
Vapour Resistance 0.12MN s.s.g-1
Moth Proofing ISO 3998 Pass
Dimensional Stability EN1604 Pass
Acoustic BS EN ISO 10534-1 Aw=0.72
Environmental Information
Made from 100% pure Welsh Sheep wool
Plastic/polyester free
Fully recyclable or compostable
Global Warming Potential 1.10kgCO₂e/m²
Biogenic carbon content: 1.83 kg CO₂ stored CO₂e/m²
That means every square metre of our insulation stores around 0.7kg CO2 more carbon than it emits
Social Impact
Truewool® sheep wool insulation only uses accredited British Wool and a British Wool license holder.
Roll Size Farmer return per roll
3.2m2 £2.46
4.8m2 £3.69
Quality Assurance
We are committed to delivering the highest quality products and services to our customers. Our rigorous quality control processes ensure that every Wool Insulation Wales product meets or exceeds industry standards.