Wood-fibre insulation boards manufacturing process

How STEICO wood fibre insulation materials are manufactured

Two processes are used to manufacture wood fibre insulation materials - the wet process and the dry process. In both processes, fresh coniferous wood is broken down by steam and mechanical treatment into individual fibres, which are then further processed.

The wet process

In the wet process, the soaked fibres are formed into panels. Then the panels are calibrated in thickness and dried as whole pieces. The clever bit: in the wet process, the wood's own natural lignin binds the panels. This means that no external adhesives are required, making wet-process insulation boards very eco-friendly and beneficial or your living environment.

The dry process

In the dry process, the fibres are dried before panel formation. A small amount of binder is applied to the fibres, which are then formed into panels. The clever bit: dry-processed wood fibre insulation panels are lighter and can be produced in greater thicknesses. That is why they are often used to insulate the building envelope, e.g., for above-rafter insulation or facade insulation.