Natural-resin-bonded wood soft fibreboard
A vapour permeable underboarding for cavity-free insulated roofs. The board is made of natural-resin bonded wood fibres from coniferous woods which are impregnated with aluminium sulphate (alum). The boards are water-repellent and can serve as emergency roofing for up to 4 weeks.
- Roof sheathing
- temporary protection against weather