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Insulation support DHM

The fire-protection-tested metal insulation support for fire-resistant insulating boards

The fischer insulation support DHM is a fire-tested metal insulation support for pressure-resistant insulation boards. The fire resistance rating F 120 guarantees a secure fixing of fire-resistant insulation. The DHM is hammered in the pre-positioned installation. The simple hammer installation allows fast setting, thereby reducing the amount of work. The spring steel expands in the building material and holds the insulation boards securely in concrete, aerated concrete, solid and hollow building materials. The DHM is hammered into aerated concrete without pre-drilling. This saves time.

Product Description

  • The metal insulation support achieves fire resistance F 120. This means that it can be used where there are fire resistance requirements.
  • The DTM 80 plate for soft insulating materials (available separately) simplifies storage and minimises costs.
  • The simple hammer installation allows fast setting, thereby reducing the amount of work.
  • The shaft geometry allows setting in aircrete without pre-drilling, thus saving a stage of installation.
  • The DHM is available in hot-dip galvanised steel or stainless steel A 2.

Available Product Variants


Application and Permission

To fix fire-resistant soft or pressure-resistant insulating materials, such as:
  • Mineral / glass wool
  • Light building boards made of wood wool
  • Foam glass tiles
Also suitable for:
  • Polystyrene boards
  • Coir matting
Building materials
  • Concrete
  • Hollow blocks made from lightweight concrete
  • Vertically perforated brick
  • Perforated sand-lime brick
  • Solid sand-lime brick
  • Natural stone with dense structure
  • Aerated concrete
  • Solid brick made from lightweight concrete
  • Solid brick
* You can find detailed information on building materials in the registration document.


  • Z-21.8-2057
For Details see corresponding Documents

Assembly Instruction

  • The insulation support is set in push-through installation using a hammer.
  • The spring steel expands when hammered into the base material.
  • Use the DTM 80 plate (available separately) to fix soft insulating materials.
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Documents for Downloading

Additional Documents


Title Type Created Valid Till
DIBt, National German Approval (PDF, 1 MB) Z-21.8-2057 4/27/2016 12/3/2020

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