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.

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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. 

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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.

Flexible insulation batts and air-injected insulation

Depending on the technology, fibres for air-injected insulation, flexible batts or solid insulation panels can be produced in the dry proces

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