Scope of application
Wood fibreboard (HFA) for cladding of wood and metal post structures in the interiors. For inner walls and facing shells DIN 4103-1, installation area 1 or 2 for ceiling and roof surfaces. On surfaces of water exposure class W0-I as per DIN 18534-1, e.g. in bathrooms (except for shower area) and household kitchens. For full-surface cladding of solid wood components, boarding, and wood-based panels. With reinforcing layer substrate for YOSIMA clay design plaster or ClayTec clay topcoat
fine 06 with ClayFix clay paint as well as other ClayTec clay plaster.

Composition
Wood fibers from PEFC-certified forestry.

Characteristic values
Compressive strength ≥ 150 kPa. Bulk density approx. 250 kg/m³, thermal conductivity value 0.05 W/mK, µ 5. Heat storage: Cp 2.1 kJ/kgK, 10.5 kJ/m²K. Fire behavior according to DIN EN 13501-1: E

Component values
For stability as per DIN 4103-1, sound insulation of walls and facing shells as well as building material class and fire resistance class for walls and
ceilings, please refer to ClayTec guidelines for „Low-emission drywall systems“.

Dimensions and weights
Thickness= 20 mm, L= 1.350 mm, W= 600 mm (Effective measure 0.78 m²/board). Mass of approx. 4 kg/board = approx. 5 kg/m².

Delivery form
112 boards/individual pallets.

Storage
In storage flat on palettes, dry. Storage is unlimited. Protect against moisture during transport and storage on construction site. On the construction site, store flat and even on dry pallets or wood. Protect edges against damages.

Please note: The side to be plastered is the light, sanded side printed with the product name.

Status: 09/2026