Products for building
ML 90 and ML 110 vapour-permeable roofing underlays are used in pitched roof constructions as multifunctional protection for attic insulation beneath the roof covering. Their micro-perforation allows water vapour from inside the building to escape from the insulation, while simultaneously forming a barrier against dust, wind, and external water. ML films are three-layer films, reinforced with a polypropylene mesh, which gives them good tear resistance.
ML type films meet the requirements of the European standard EN 13859-1:2010 and are CE marked.
Commercial form
roll 75 m2
weight
70 - 140 g/m2
width
1,5 m
| PARAMETER | ML 90 | ML 110 |
| Mass [g/m²] | 90 (+5%/-25%) | 110 (+5%/-25%) |
| Tear resistance [N] | lengthwise: (200 ± 140) crosswise: (205 ± 145) |
lengthwise: (200 ± 140) crosswise: (205 ± 145) |
| Elongation at break [%] lengthwise | before ageing: 13 ± 6 after ageing: 13 ± 6 |
before ageing: 13 ± 6 after ageing: 13 ± 6 |
| Elongation at break [%] crosswise | before ageing: 13 ± 6 after ageing: 13 ± 6 |
before ageing: 13 ± 6 after ageing: 13 ± 6 |
| Tensile strength [N/50mm] lengthwise | before ageing: (300 ± 180) after ageing: (300 ± 210) |
before ageing: (300 ± 180) after ageing: (300 ± 210) |
| Tensile strength [N/50mm] crosswise | before ageing: (230 ± 180) after ageing: (230 ± 180) |
before ageing: (230 ± 180) after ageing: (230 ± 180) |
| Water resistance | before ageing: class W3 after ageing: class W3 |
before ageing: class W3 after ageing: class W3 |
| Fire resistance class | F | F |
| Flexibility at low temperature (deformability) [°C] | -25 | -25 |
| Roll dimensions [m] | 1.5 × 50 | 1.5 × 50 |
See installation instructions for:
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