Vapor barrier for use in buildings

Abstract

A vapor barrier for use in buildings, in particular for use in facades and/or in the rehabilitation of building roofs, wherein the barrier has a water vapor diffusion resistance (s d factor) of 0.4 to 1.9 m diffusion-equivalent air layer thickness which is constant over the entire surface area.

1 . A vapor barrier for use in buildings, characterized in that it has a water vapor diffusion resistance (s d  factor) of 0.4 to 1.9 m diffusion-equivalent air layer thickness which is constant over the entire surface area. 
   
   
       2 . The vapor barrier according to  claim 1 , characterized in that it has a constant s d  factor of 0.6 to 1.7 m. 
   
   
       3 . The vapor barrier according to  claim 1 , characterized in that it comprises a plastic foil. 
   
   
       4 . The vapor barrier according to  claim 1 , characterized in that the plastic foil is manufactured with an extrusion process. 
   
   
       5 . The vapor barrier according to  claim 1 , characterized in that the plastic foil is of a modified polyethylene. 
   
   
       6 . The vapor barrier according to  claim 1 , characterized in that the plastic foil is of an ethylene vinyl acetate copolymer. 
   
   
       7 . The vapor barrier according to  claim 1 , characterized in that it is flexible, foldable and/or rollable. 
   
   
       8 . The vapor barrier according to  claim 1 , characterized in that it is partially self-adhesive. 
   
   
       9 . The vapor barrier according to  claim 1 , characterized in that it has a self-adhesive edge area. 
   
   
       10 . The vapor barrier according to  claim 1 , characterized in that it has a reinforcement. 
   
   
       11 . The vapor barrier according to  claim 1 , characterized in that the reinforcement is of selected from the group consisting of a textile, a laying, knitwear a non-woven material and combinations thereof. 
   
   
       12 . The vapor barrier according to  claim 1 , characterized in that it comprises a carrier layer. 
   
   
       13 . The vapor barrier according to  claim 1 , characterized in that the carrier layer is of a textile or a non-woven material. 
   
   
       14 . The vapor barrier according to  claim 1 , characterized in that it comprises additives to determine at least one of its color, its fire behavior its resistance to ageing. 
   
   
       15 . The vapor barrier according to  claim 1 , wherein the barrier is in a facade or a roof. 
   
   
       16 . The vapor barrier according to  claim 2 , wherein the barrier has a constant s d  factor of 0.8 to 1.6 m. 
   
   
       17 . The vapor barrier according to  claim 2 , wherein the barrier has a constant s d  factor of 1.0 to 1.5 m. 
   
   
       18 . The vapor barrier according to  claim 13 , wherein the carrier layer is of a tufted material or thermally reinforced non-woven material.