Breathable membrane WÜTOP® METAL SK
WÜTOP Metal SK breathable membrane
ROOFUNDRLAYSTR-METAL-SK-L24-W1,5M-36SM
WUETOP
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Highly-breathable synthetic membrane, triple-layer, combined with a three-dimensional drainage mesh and sound-deadening coating for sheet metal roofs
Sound damping
- reduction of noise caused by rain and hail on the sheet metal covering
- improves living comfort
Impermeable to water
- the drainage layer allows for the removal of the condensate that may form under the metal covering and reduces the risk of corrosion
- The triple-layer membrane protects the thermal insulation from condensation or leaks and keeps it dry and functional
Correct degree of breathability
- high permeability for water vapour
- aids the expulsion of damp accumulated inside the insulation package
It is essential to ensure good ventilation and free water drainage under the covering
Suitable for fitting on roofs with metal covers, provides a stable base for installation even when subject to high loads, for example snow
To be applied to the cold side of the roof in direct contact with the insulation. Follow the installation instructions enclosed with the product carefully (see back page)
Wütop® METAL SK is a sound-absorbing breathable fabric suitable for metal roofs. The product can be laid directly onto the thermal insulation covering; it protects against moisture ingress due to the condensate which can gather under the roof, and serves as a sound-absorbing layer to dull the noise caused by rain or hail. Install Wütop® METAL SK parallel to the line of the eaves, fixing it to the substructure (using stainless-steel staples) in correspondence with the overlapping area of the sheets that will be sealed with the integrated adhesive tape. The laying of the covering must be carried out immediately after the application of the sheeting, in order to prevent the latter from being damaged by UV rays
Coating weight per m² | 450 g |
Length of roll | 24 m |
Roll width | 1.5 m |
Area | 36 m² |
Weight of roll | 20 kg |
Number of rolls per pallet | 8 PCS |
Material | PP - Polypropylene |
Min./max. temperature resistance | -40 to 100 °C |
Building material class/conditions | E - Normally inflammable / in accordance with DIN EN 13501-1 |
Air layer thickness equivalent to water-vapour diffusion/conditions | 0.045 m / in accordance with DIN EN 12572 C |
Resistance to penetration of water | W1 |
Resistance to tear propagation (longitudinal) | 185 N |
Resistance to tear propagation (transverse) | 160 N |
Longitudinal tensile force per 50 mm | 300 N |
Transverse tensile force per 50 mm | 250 N |
Building material class | E - Normally inflammable |
| Technical data: | |||
| Description | Test/standard | Test/standard | Value |
| Material | Polypropylene | ||
| Area density | 430 g/m2 (150+280) | ||
| Density | 54 kg/m3 | ||
| Thickness | 8 mm | ||
| Roll width | 1.5 m | ||
| Roll length | 25 m | ||
| Roll total area | 37.5 m2 | ||
| Roll weight | 16.2 kg | ||
| Tensile strength | EN12311-1 | Long. | 310 N/50 mm |
| Transv. | 215 N/50 mm | ||
| Elongation at break | EN 12311-1 | Long. | 45 % |
| Transv. | 70 % | ||
| Nail tear strength | EN 12310-1 | Long. | 170 N |
| Transv. | 190 N | ||
| Watertightness | EN 1928 - EN 13111 | W1 | |
| UV resistance | 3 months | ||
| Vapour permeability | EN ISO 12572 | Approx. 1000 g/m2/24 h | |
| Sd value | EN ISO 12572 | 0.02 m | |
| Water column | EN 20811 | >280 cm | |
| Dimensional stability | EN 1107-2 | < 2 % | |
| Thermal stability | EN 13859-1 | From -40 to +80°C | |
| Fire rating | EN 13501-1 | E | |
| Flexibility at low temp. | EN 1109 | -30°C | |
| Void index | 95 % | ||
| Reduction in the global A-weighted sound intensity level caused by driving rain LIA | UNI EN ISO 140-18:2007 | 4.2 dB | |
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