STEICOmulti UDB
Highly vapour-permeable airtight membrane
Highly vapour-permable airtight membrane, sarking membrane and roofing underlayment
• 3-layer, tear-resistant and flexible
• 2 integrated self-adhesive areas
• Airtight, highly vapour-permeable and resistant to driving rain
• Highly tear-resistant
• Outdoor exposure of up to 3 months possible
Product sheet
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 to +80 |
| Max. tensile force longitudinal | 290 |
| Max. tensile force transverse | 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 aging | W1 |
| Outdoor exposure | 3 Months |
| Suitable as a temporary roof cover | 4 Weeks |
| 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
Length [mm] |
Width [mm] |
Area/roll [m²] |
|---|---|---|
| 50000 | 1500 | 75 |
| 50000 | 1500 | 75 |
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
