Diffusion permeable, fully self-adhesive and airtight weather protection membrane

  • 3-layer, tear-resistant and flexible
  • high security thanks to fully self-adhesive membrane
  • Airtight, vapour permeable and resistant to driving rain
  • Functional layer protected on both sides by PP fibre fleece
  • High heat and ageing resistance
  • Outdoor exposure of up to 3 months possible

Product sheet


Production and designation EN 13859
Fire class (RTF) according to EN 13501-1 E
Area weight [g/cm²] 255
sd value [m] 0,20
Temperature resistance [°C] -40 to +100
Processing temperature [°C] > -10, the surface must be dry and free of ice
Max. tensile force longitudinal 290
Max. tensile force transverse 225
Elongation at Max. tensile force longitudinal [%] 65
Elongation at Max. tensile force transverse [%] 90
Tear resistance longitudinal [N] 170
Tear resistance transverse [N] 200
Resistance to water penetration W1
Seepage resistance after artificial aging W1
Outdoor exposure roof and wall 3 Months
Outdoor exposure ceiling 4 Weeks
Split silicone liner [cm] 125/25
Suitable as a temporary roof cover Zes, accord. to ZVDH (DN≥10°)
Adhesive Modified acrylate, solvent-free
Driving rain test TU Berlin Passed


Length [mm]

Width [mm]

Area/roll [m²]
30000 1500 45

Processing STEICOmulti CAP

  • Substrates must be capable of bearing a load, dry and free from dust and grease
  • Lay the membrane so that the printed side is facing the fitter
  • STEICOmulti CAP has to be applied on the whole surface of the substrate (timber, wood-based material, masonry, concrete). It can be applied

horizontally or vertically. They need to have an overlap of at least 10 cm.

  • Cut the membrane to required length, gradually remove the liner and adhere STEICOmulti CAP progressively at the beginning of the element.
  • Align STEICOmulti CAP and gradually remove the liner and forcefully rub on the membrane
  • Split release liner facilitates the bonding of corners, as initially only one liner can be removed
  • Component joints and penetrations must be made in an airtight manner using STEICO system accessories
  • Avoid standing water. Heavy rains should be evacuated from the building through drains.
  • Process STEICOmulti CAP in span direction of the ceiling element.
  • Local norms and regulations have to be observed.

(Please refer to the product data sheet for detailed information)

Declaration of performance

System Recommendations

STEICOmulti tape F

High performance tape with special foil
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STEICOmulti connect

solvent free primer
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STEICOmulti nail

Nail tight tape
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