| 摘要 |
The multi-layered construction foil useful as vapor barrier in building construction, comprises an elastomer or thermoplastic-inner layer (1) with a thickness of 0.3-2 mm, polymer layers with the thickness of 30-100 mu m arranged on both sides of the inner layer, and UV-protective layers (3) covering the both layers and forming an external surface of the construction foil. The polymer- and the protective layers with exception of the inner layer exhibit a perforation channels (4) with a diameter of 1-5 mm, which are completely filled with the elastomer or thermoplastic materials. The multi-layered construction foil useful as vapor barrier in building construction, comprises an elastomer or thermoplastic-inner layer (1) with a thickness of 0.3-2 mm, polymer layers with the thickness of 30-100 mu m arranged on both sides of the inner layer, and UV-protective layers (3) covering the both layers and forming an external surface of the construction foil. The polymer- and the protective layers with exception of the inner layer exhibit a perforation channels (4) with a diameter of 1-5 mm, which are completely filled with the elastomer or thermoplastic materials and are arranged at corner points of a grid network. The protective layers are formed by a color film. The color of the protective layers is developed on a nitrocellulose-basis in which color pigments are admixed. The protective layers exhibit a coating application having a wet weight of 2-10 g/m2>. An independent claim is included for a procedure for the production of a multi-layered construction foil. |
