Key features
Thermal performance
Thermafleece PB20 contains 60% British sheep's wool, a sustainable and functional fibre with unparalleled insulating properties. Combining this wool with recycled polyester provides a versatile compressed insulation with thermal performance equal to or better than many conventional materials. Thermafleece PB20 has a nominal density of 20kg/m3 and a thermal conductivity of 0.039 W/mK.
Versatile
Not only does Thermafleece PB20 provide excellent thermal insulation, it can be used in many acoustic applications. It acts in sympathy with your property absorbing many indoor air pollutants and helping control humidity levels.
Long lasting
In order to ensure consistent thermal performance, it is important that insulation regains its thickness when unrolled and retains its shape throughout its service life. Thermafleece PB20 contains a lofting agent to maintain fibre stability and recycled polyester fibres that ensure the insulation regains its thickness when unrolled.
Safe
Thermafleece PB20 is sfae to handle without the need for personal protective equipment.
Moisture & temperature control
The hygroscopic nature of wool fibres means that Thermafleece PB20 can act in sympathy with buildings to control internal moisture levels and contribute to a more stable and comfortable indoor environment. When the wool in PB20 encounters moisture it is capable of releasing and absorbing heat. Wool releases heat when it absorbs moisture and absorbs heat when it releases moisture which can have a stabilising influence over air temperature.
Fire resistance
Thermafleece PB20 is treated with a low level of borate fireproofing agent to improve its intrinsic fire resistance and comply with BS 5803-4, achieving results of zero for ignitability, spread of flame.