Damp-proofing with wind-proofing for buildings

Abstract

A moisture-adaptive vapour-barrier film consisting of polyethylene and acrylic ester is proposed for the full insulation of buildings, which adapts its diffusion resistance to environmental conditions in such a way that it blocks its pores in the winter and opens its pores in the summer and the vapour-diffusion resistance of which can be changed and adjusted as a function of the proportion of the acrylic ester so as to correspond to a diffusion equivalence from 0.5 m to 100 m air-layer thickness.

What is claimed:  
     
         1 ) A moisture-adaptive vapour-barrier film for full insulation of buildings, which adapts its diffusion resistance to environmental conditions in such a way that it blocks its pores in the winter and opens its pores in the summer, characterised in that it consists of a mixture of polyethylene and acrylic ester.  
     
     
         2 ) Moisture-adaptive vapour-barrier film according to  claim 1 , characterised in that the vapour-diffusion resistance of the film can be changed and adjusted as a function of the proportion of the acrylic ester in the polyethylene, corresponding to a diffusion equivalence from 0.5 m to 100 m air-layer thickness and a relative atmospheric humidity from 60% to 80%.  
     
     
         3 ) Moisture-adaptive vapour-barrier film according to claims  1  and  2 , characterised in that the film has a thickness from 20 μm to 200 μm.  
     
     
         4 ) Moisture-adaptive vapour-barrier film according to  claims 1  to  3 , characterised in that the film is preferably used for the full insulation of the rafters of a roof.  
     
     
         5 ) Moisture-adaptive vapour-barrier film according to  claims 1  to  3 , characterised in that the film is used for the coating of building boards such as panels which consist of open-pore building materials.  
     
     
         6 ) Moisture-adaptive vapour-barrier film according to  claims 1  to  3 , characterised in that the film serves for the coating of insulating mats.  
     
     
         7 ) Moisture-adaptive vapour-barrier film according to  claims 1  to  6 , characterised in that the film forms a laminate with a base material consisting of paper.  
     
     
         8 ) Moisture-adaptive vapour-barrier film according to  claims 1  to  5 , characterised in that the film forms a laminate with a base material consisting of tiles.  
     
     
         9 ) Moisture-adaptive vapour-barrier film according to  claims 1  to  8 , characterised in that the film is manufactured from recycled material.  
     
     
         10 ) Moisture-adaptive vapour-barrier film according to  claims 1  to  9 , characterised in that the film is preferably manufactured by the extrusion blowing process.