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StoTherm Vario

Cost-optimised external wall insulation system with a large selection of materials
StoTherm Vario

Products and systems vary from location to location due to local building regulations and standards. We strongly advise you to make contact, your local expert will be happy to consult you on standards and approval.

System advantages

  • huge variety of creative possibilities using colour shades, textures, and materials
  • large seamless facade surfaces possible
  • entirely mineral coating build-up possible
  • high resistance to micoorganisms (algae and fungi), especially with an additional paint build-up
  • clean building site thanks to a system-approved PU foam adhesive technology
  • water vapour permeable
  • complete range of system components for efficient supply and delivery

Download centre

For further details, support with project – specific u-values, BIM elements and project advice, please feel free to contact us here

  • Construction details
  • BIM files
  • Specification texts

Construction details

  • Construction details

BIM files

  • Facade insulation systems in LOD200

  • Three-dimensional facade elements in LOD400

Specification texts

  • Intelligent Technology Finish


Thermal protection

  • approved EPS insulation board
  • for natural stone and ceramic cladding up to 200 mm

Reaction to fire

  • limited combustibility
  • class B, C in accordance with EN 13501-1, depending on system build-up
  • additional fire protection measures may be required

Impact resistance

  • resistant to mechanical stress
  • hail impact resistance class 3 in the appropriate system build-up

Wind load

  • can be used with increased wind loads provided there is additional suitable fixing

Other properties

optional Lotus-Effect® Technology

  • 23827
  • 25726


Area of application

  • new and existing buildings up to high-rise level
  • all types of public, private and commercial buildings
  • to be used in accordance with the local building rules and regulations
  • suitable for buildings in accordance with the lowest energy standard
  • suitable for all climate zones


  • masonry, e.g. brick, calcium silicate masonry units, cellular concrete, fair-faced masonry and masonry veneer
  • concrete, concrete slab construction
  • timber construction (solid, frame and panel construction)
  • steel construction (column and framing)
  • lightweight construction
  • existing external wall insulation systems (doubling-up of insulation)


  • bonding
  • bonding and fixing with anchors
  • purely mechanical fixing


  • suitable for application by machine
  • no additional paint coat necessary if using cement-free finishing render
  • special protection against algae and fungi with a double coat of paint

Creative possibilities

Design options

  • Acrylic renders, silicone resin renders, and renders with Lotus-Effect® Technology in stippled render texture, rilled render texture, or in free-style textured render
  • resin brick slips and 3D facade elements made of Verolith granulate
  • Natural stone tiles, brick slips, and ceramic tiles

Colour spectrum

  • great choice of colour shades in accordance with the StoColor System
  • light reflectance value ≥ 20 %



The relevant European and/or national approvals apply.

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We are Sto, how can we help you?

  • Audra Lee
    Audra Lee Sto Singapore
  • Otto Norling
    Otto Norling Sto Sweden
  • Wei Zhuang
    Wei Zhuang Sto China
  • Grant Littlejohn
    Grant Littlejohn Int. project support London
  • Mark Harris
    Mark Harris Sto Gulf Region
  • Murat Yarar
    Murat Yarar Sto Turkey

Global presence. Local knowledge.
Feel free to contact us.