Products for building
Polyurethane vapour-permeable roofing underlay membranes (MWK) with TPU film have become the standard for roofs, displacing other outdated technologies. Pursuing our mission to find the perfect product, we have managed to create membranes with even better parameters using new materials and innovative technologies.
Meet MPFRoof – a modern roofing underlay membrane that provides excellent protection and comfort for your roof.
Our membrane combines two advanced layers: a sturdy needle-punched nonwoven fabric and an innovative thermoplastic polyurethane (TPU) film. This combination guarantees:
- Extreme Durability – Resistance to damage during installation.
- Flexibility – Easy and quick installation, adapting to any surface.
- High Vapor Permeability – Effective moisture management, even with minimal pressure differences.
MPFRoof performs excellently on both solid and open decking, as well as directly on the roof structure. It is resistant to high temperatures (+120°C) and provides excellent protection thanks to its high fire reaction class (B-s1,d0).
With MPFRoof, your roof will be durable, functional, and always dry. Choose our membrane and enjoy reliable protection and long-term peace of mind!
| PARAMETER | VALUE | |
| Mass [g/m²] | 185 ±10% | |
| Sd – equivalent air layer thickness [m] | 0.11 (±0.06) | |
| Tensile strength [N/50mm] | lengthwise: 470 (±110) crosswise: 420 (±110) |
|
| Nail tear resistance [N] | lengthwise: 380 (±100) crosswise: 390 (±100) |
|
| Water tightness class | W1 | |
| Fire resistance class | B-s1,d0* | |
| Roll dimensions [m] | 1.5 × 50 | |
| Low temperature flexibility (deformability) [°C] | -40 | |
| Artificial aging resistance |
Tensile strength [N/50mm] | lengthwise: 330 (±90) crosswise: 330 (±90) |
| Elongation at break [%] | lengthwise: 60 (±25) crosswise: 60 (±25) |
|
| UV resistance** | 26 weeks | |
| Period without main covering*** | 6 weeks | |
* When installed directly onto components with reaction to fire classes A1 or A2, or at any distance from them / D-s1,d0 when installed directly onto wooden and wood-based components, or at any distance from them.
** According to laboratory studies conducted under artificial aging, this period is based on average annual UV exposure from sunlight in Central Europe.
*** The recommended period for the membrane to remain on the roof without primary covering should be as short as possible, depending on the membrane’s construction.
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