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ClayTec HFA N+F D20

Product Information

Wood fiberboard (HFA) for planking wood and metal stud constructions in interior areas. For interior walls and facing shells DIN 4103-1, installation area 1 or 2, for ceiling and roof surfaces. On surfaces of water impact class W0-I according to DIN 18534-1, e.g. in bathrooms (except shower areas) and domestic kitchens. With reinforcement layer substrate for YOSIMA Clay Designer Plaster or ClayTec Clay topcoat fine 06 with CLAYFIX Clay Paint as well as for other ClayTec clay plasters.


Wood fibers made from wood from responsibly managed forests.

Building material 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
For stability according to DIN 4103-1, sound insulation of walls and facing shells as well as building material class and fire resistance class of walls and ceilings see ClayTec guide ecological drywalls in the system.

ClayTec HFA N+F D20

Wood fibreboard (HFA) for planking wood and metal stud constructions of interior walls, facing shells, ceiling and roof surfaces. ClayTec HFA N+F are lightweight and breathable. The small format and tongue-and-groove ensure the best workability, even joints in the field are possible. At the same time, it is very reasonably priced, making ecological drywall affordable for everyone! In addition to this product sheet, the ClayTec guide ecological drywall in the system applies.

Delivery form, coverage

112 boards/EW-pal. Please note: As of production date 10.12.2022, the ClayTec HFA N+F D20 is printed with a ground surface on the room side. Please plaster this side only! For production dates prior to 10.12.2022, the unprinted side must be plastered (recognizable by the date stamp on the plate).


0.60 m x 1.35 m, edges with tongue and groove (covering dimension 0.78 m2/board), D = 20 mm. weight approx. 5 kg/m2 = approx. 4 kg/board

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