The wool Fugenband is a sheep wool filler for thermal insulation of hollow spaces around windows and doors. The carded wool band is made from 100% pesticide-free sheep’s wool.

Sheep’s wool is a great insulating material. The material purifies the air, regulates humidity, and is naturally fire-retardant and water-repellent. The wool comes from Alpine sheep from Austria, Germany and Switzerland, which are shorn twice a year.