Solutions for the housing technology Fire Protection Systems

ROKU® System IWM III plus

EI 90 / 120 / 240

The ROKU® System IWM III plus consists of the high performance intumescent material „ROKU® Strip“, which is wrapped in one or more layers around the plastic pipe or the insulation. The wrap must be inserted into the annular gap flush with the surface. In the event of a fire, the intumescent material expands with high pressure and thus seals the opening hermetically against flames and smoke. For wall installations one wrap on each side of the wall and for ceiling installations one wrap on the underside of the ceiling must be provided.


  • Sealing of plastic pipes of PVC, PE or PP with max. 160 mm pipe´s outside
  • Sealing of sound-isolated sewage pipes as e. g. POLO-KAL NG, Geberit
    Silent-PP, REHAU RAUPIANO PLUS or Wavin SiTech
  • Sealing of multi-layer composite pipes as e. g. Alpex Duo / F 50, Uponor
    MLC pipe white or aquatherm green pipe MS
  • Pipes without insulation can be insulated with max. 4 mm PE-acoustic insulation
    or with synthetic rubber insulation
  • Application in ROKU® MFS Combined Penetration Seal is possible
  • Can be used in shaft walls ≥ 2 x 20 mm


  • Only one product for a wide range of pipes
  • Easy and excellent usability
  • Flexibel and easy installation
  • Suitable for the application in wet and humid areas
  • No tools necessary

Supplied form

Supplied form IWM III plus

Technical data
Number of layers IWM III plus

Fire protection systems and solutions in the field of housing technology
Combustible Pipes Non-Combustible Pipes Electrical Lines

Available documents:

Technical Data Sheet
ROKU® System IWM III plus_EN


European Technical Assessment
ROKU® System IWM III plus - ETA-15/0869