Crimped wool fibres gives sheep wool insulation particularly good resilience. and has a higher fire resistance than cellulose and cellular plastic insulation.

Our sheepwool undergoes numerous technical inspections, carries the international quality seal natureplus and has received the European Technical Approval (ETA).

It does not burn, but instead singes away from fire and extinguishes itself (Wool has a very high inflammation point of 560°C due to its high Nitrogen content of ~16%). Sheep wool insulation is self-extinguishing because of its high Limiting Oxygen Index (LOI=25.2), which means to completely burn wool an oxygen content of 25.2% is necessary, whereas air only has 21%. Wool has a higher fire resistance than cellulose and cellular plastic insulation.

Sheep wool is also provides natural sound insulation benefits, with multiple layers of wool fibres effectively reducing airborne sound transfer.