Scope of application

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

Composition

Wood fibers from PEFC-certified forestry, white glue for layer bonding.

Parameters

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, 13.1 kJ/m2K. Fire behaviour according to DIN EN 13501-1: E

Component values

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

Dimensions and weights

Thickness = 25 mm, L = 1.87,5 mm, W = 1.250 mm. Surface per board = 2.34 m². Mass of approx. 14.6 kg/board = approx. 6.25 kg/m².

Delivery form

Shrink-wrapped on pallets of 45 pcs.

Storage

Store flat on pallets in a dry place. Storage is unlimited. Protect against moisture during transport and storage on the construction site. On site, store flat and
level on dry pallets or timber. Protect edges from damage.

Status: 09/2026