STEICOmulti UDB

Vapour permeable windproof membrane

Highly vapour-permeable, airtight, driving rain and windproof membrane

  • Wide range of applications - as an airtight membrane e.g. in renovation or as a sarking membrane e.g. as a supplement to sarking boards
  • Robust and flexible: 3-layer, coated PP non-woven fabric, high tear resistance
  • Especially vapour permeable with a sd-value of 0.02m
  • Secure membrane bonding with 2 integrated self-adhesive zones

Characteristics

Production and designation EN 13859
Fire class (RTF) according to EN 13501-1 E
Area weight [g/cm²] 165
sd value [m] 0,02
Temperature resistance [°C] -40 / +80
Max. tensile force longitudinal [N/5cm] ≥ 290
Max. tensile force transverse [N/5cm] ≥ 210
Elongation at Max. tensile force longitudinal [%] ≥ 50
Elongation at Max. tensile force transverse [%] ≥ 90
Tear resistance longitudinal [N] ≥ 220
Tear resistance transverse [N] ≥ 280
Resistance to water penetration W1
Seepage resistance after artificial ageing W1
Outdoor exposure [weeks] 12
Suitable as a temporary roof cover [weeks] 4
Resistance to air penetration [m³/m²] ≤0,04×h according to EN 12114
Minimum roof pitch [°] ≥10 ° depending on the standard roof pitch of the roofing

Dimensions

Article number

Length [mm]

Width [mm]

Area/roll [m²] Coverage/pal. net [m²] Number/pal. [pcs.]
359299 50000 1500 75 1500,000 20

Processing STEICOmulti UDB

  • Lay the membrane or sheet so that the printed side is facing the fitter
  • Lay the membrane or sheet parallel to the eaves starting with an overlap of at least 10 cm
  • Fix the membrane or sheet in place solely within the overlap area (e.g. clips)
  • Activate the longitudinal self-adhesive areas by removing the protective strip only after the membrane or sheet has beed fixed in place

The following also applies when used as an airtight membrane:

  • Ensure flush-mounted bay insulation (no cavities may exist under the STEICOmulti UDB)
  • Sufficiently thick insulation covering with STEICOspecial/STEICOspecial dry and STEICOuniversal/STEICOuniversal dry must be carried out; for additional details see "Konstruktionsheft Steildach" (inclined roof construction booklet)
  • Component joints and penetrations must be made in an airtight manner by means of STEICO system accessories
  • Additional information can be found in the seperate processing instructions for STEICOmulti UDB

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

Declaration of performance

System Recommendations

STEICOmulti tape F

High performance tape with special foil
To Product

STEICOmulti connect

Permanently flexible adhesive sealant
To Product

STEICOmulti nail

Nail tight tape
To Product

Similar Products

STEICOmulti cover 5

Wear resistant, rain proof vapour control membrane
To Product