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Underlays WÜTOP® Thermo ND Plus
Underlays WÜTOP<SUP>®</SUP> Thermo ND Plus

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Underlays WÜTOP® Thermo ND Plus

The perforation-proof polyester roof protection film

  • Coating weight per m²: 230 g
  • Length of roll: 50 m
  • Weight of roll: 21 kg
  • Material: Polyester fleece
  • Min./max. temperature resistance: -40 to 120 °C
  • Building material class/conditions: E - Normally inflammable / in accordance with DIN EN 13501-1
  • Air layer thickness equivalent to water-vapour diffusion/conditions: 0.13 m / in accordance with EN ISO 12572
  • Resistance to penetration of water: W1
  • Resistance to tear propagation (longitudinal): 210 N
  • Resistance to tear propagation (transverse): 210 N
  • Longitudinal tensile force per 50 mm: 310 N
  • Transverse tensile force per 50 mm: 360 N
  • Suitable as preliminary roofing for slate: 12 Weeks
  • Suitable for makeshift roofing/makeshift coverage: 12 Weeks
  • Ultraviolet resistance: Max. 6 months
  • Building material class: E - Normally inflammable
  • watertightness of the seams: Passed

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Available in 2 versions

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Variants

The WÜTOP Thermo ND Plus is a highly vapour-permeable polyester-based underlay membrane and roof protection film with a special coating. It is laid directly on the heat insulation or formwork of ventilated and non-ventilated pitched roofs.



Secured against perforation in accordance with ETA-17/0206


Self-seals around nail punctures on pressure-resistant surfaces (tested at the Fraunhofer Institute for Building Physics).



Technology


Polyester fleece with special coating



Safety


Polyester is an extremely weather-resistant material, offers excellent resistance against UV radiation, and is temperature resistant up to 120°C. The special coating is non-slip and can be securely bonded.



Saves time and money


Self-seals around nail punctures saving huge amounts of time and money. Easy and fast installation thanks to integrated adhesive strips.



Special version for slate


Suitable as a preliminary covering for slate roofs according to German Central Association of the Roofing Trade.

Notice

Please note the installation instructions for this product.

European technical assessment ETA-17/0206



UDB/USB


Meets the requirements of the ZVDH (German Central Association of the Roofing Trade) product data sheet for class UDB/USB



Secured against perforation in accordance with ETA-17/0206


In accordance with the test certificate of Technische Universität Berlin and the test reports nos. P-06-186-2015 and P-06-187-2015 of the Fraunhofer Institute for Building Physics - in each case, based on DIN EN 13111; 2001-08 - the product may be classified as perforation-proof (nail-proof) and resistant to driving rain as defined by these test reports. Note: Both systems were tested for test reports P-6-186-2015 (without nail sealing tape) and P-6-187/2015 (with nail sealing tape). The Wütop Thermo ND Plus has demonstrated sufficient resistance to nail punctures. The following construction-related conditions must be met:


  • Fasten counter battens (30/50) with min. 3.1 x 90 nails (smooth) or 2.8 x 80 (grooved)

  • Install dry counter battens. (S10, <20M%)

  • No staples in the surface area of the strip; alternatively, these staple points can be sealed afterwards with a suitable adhesive tape.

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