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 for your living environment.
Image showing the wet process.
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.
Image showing the dry process.
