StoTherm Classic 
1. Bonding
2. Insulation
3. Reinforcing plaster
4. Reinforcing mesh
5. Top coat
Facade insulation system

StoTherm Classic
Organic external wall insulation system of limited
combustibility with polystyrene insulation

StoTherm Classic has been in successful use for over 40 years,
during which time it has undergone continuous development. The
most successful facade insulation system worldwide offers the
utmost in system reliability and durability – as confirmed by almost
100 million square metres in all climate zones worldwide and by far
the lowest complaints quota on the market. Shock-proof and impact
resistance ten times higher than that of mineral systems together
with much greater feasibility of colour, maximum crack-proofness and cementfree system components throughout make StoTherm Classic
the technically superior facade insulation system.

Application
  • Existing and new buildings up to high-rise level
  • Wall structures: Masonry (concrete, sand-lime block, brick, porous
    concrete), fair-faced masonry, panel constructions (three-layered
    panelling) and wood construction
  • On timber external walls
  • Unevenness of up to 3 cm (on solid constructions)
  • Insulant thickness up to 400 mm
  • Connection details certified to passive house standard
Properties
  • High resistance to microorganisms (algae, fungi), particularly
    in conjunction with a complementary paint system
  • Very high crack resistance
  • High mechanical resistant, up to 15 joule in standard
  • system configuration
  • With Plinth protection system compounds
    demonstrably resistant up to 60 Joule
  • Highly effective thermal insulant
  • Highly weather-resistant
  • Permeable to CO2 and water vapour
  • Of limited combustibility
  • Also suitable for low-energy and passive houses
  • Anti-electrosmog optional
  • Lotus-Effect® optional
Appearance
  • Organic and silicone resin plasters
  • Tintable according to the StoColor System
  • Lightness values of < 15 % possible (on request)
  • StoDeco Profiles, StoDeco Rustications, Sto Rustication Boards
  • Sto Natural Stone Tiles, ceramic tiles
  • Sto Brick Slips, glazed brick slips
Installation
  • Cement-free, ready-to-use system components throughout
  • Complete detail solutions
  • No diagonal reinforcement, priming or equalisation
    coats necessary
Approvals
  • European Technical Approval ETA-03/0027 StoTherm Classic