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Three-layer construction wood wool boards with core of stone wool in reaction to fire A2

The wood wool board DRVOTERM A2 is made from segments of stone wool (stone wool fibres are oriented perpendicular to the surface of the board), and two layers of mineralised wood-wool; cement binder and additives unite wood wool and the core into a compact unit. The surface provides high mechanical resistance and exceptional grip of the boards for mortar and adhesives.



  • non-combustible material: A2 – s1, d0 after EN 13501-1
  • thermal conductivity for stone wool : λ=0,040 W
  • audible insulation properties
  • fire resistance up to F90 AB (plastered boards)
  • good adhesion to concrete and the ideal surface for plastering
  • neutrality in combination with building materials and metals
  • very good mechanical properties
  • easy formatting and other processing at installation

Purpose, use and installation

  • cladding of ceilings and walls in underground garages for anti-fire, thermal and acoustic insulation for residential, commercial and other buildings
  • installation in the same way as other wood wool boards (DN, DP, DTO)
  • installation in applications where flame resistance, thermal and sound insulation, sound absorption, and at the same time a beautiful and natural look are required
  • installation with bonding with concrete or subsequent fastening


thickness of boards5 cm - 20 cm
size of boards100 × 60 cm
unit of measurem 2