Film element

Abstract

A façade or roof structure in light weight construction having at least one film element made of at least one film or fabric layer which forms the outer walls of a weather-proof cavity which can be filled with a gas, at least one material layer for reducing the transmission of energy by radiation and/or for noise insulation being disposed on at least one side of the film or fabric layer. The material layer is almost totally enclosed by the film or fabric layer in order to protect against climatic conditions.

1 . A façade or roof structure in light weight construction having at least one film element made of at least one film or fabric layer which forms the outer walls of a weather-proof cavity which can be filled with a gas, at least one side of the film or fabric layer in direct contact with at least one material layer being coated in order to reduce the transmission of energy by radiation and/or to provide noise insulation, wherein the material layer is substantially enclosed by the film or fabric layer in order to protect it against climatic conditions. 
   
   
       2 . The façade or roof structure according to  claim 1 , wherein at least one material layer for reducing the transmission of energy by radiation and/or for noise insulation is disposed on a side facing towards the cavity of at least one of the film or fabric layers. 
   
   
       3 . The façade or roof structure according to  claim 1 , wherein the material layer has a layer thickness of between 1 μm and 100 μm, preferably between 2 μm and 75 μm, more preferably between 5 μm and 50 μm, and in particular 10 μm. 
   
   
       4 . The façade or roof structure according to  claim 3 , wherein by choosing the layer thickness of the material layers and/or the number of material layers within the cavity a translucence of between 2% and 75%, preferably between 10% and 60%, and in particular 50% can be set. 
   
   
       5 . The façade or roof structure according to  claim 1 , wherein the material for forming the material layers is chosen from the group comprising low e layers, pigmented or non-pigmented ITO layers (indium tin oxide layers), pigmented or non-pigmented thin aluminium layers, pigmented or non-pigmented thin silver, gold or platinum layers, pigmented or non-pigmented laminated thin films with an ITO layer, or also combinations of the latter. 
   
   
       6 . The façade or roof structure according to  claim 1 , wherein at least one further film or fabric layer in the form of an intermediate layer is disposed within the cavity. 
   
   
       7 . The façade or roof structure according to  claim 6 , wherein the at least one intermediate layer divides the cavity into a number of chamber sections such that different pressures can be set in the chamber sections formed by the intermediate layer(s). 
   
   
       8 . The façade or roof structure according to  claim 6 , wherein at least one intermediate layer is formed by an acoustically absorbent material which is disposed within the cavity. 
   
   
       9 . The façade or roof structure according to  claim 6 , wherein at least one intermediate layer is formed within the cavity as a solar foil, in particular as a thin solar foil printed onto at least one of the film or fabric layers. 
   
   
       10 . The façade or roof structure according to  claim 6 , wherein at least one intermediate layer is made of a translucent, self-supporting material strip which is designed such that the heat conductivity and/or the convection and/or the noise insulation properties can be adjusted by at least partial evacuation of the cavity. 
   
   
       11 . The façade or roof structure according to  claim 6 , wherein the at least one intermediate layer disposed in the cavity be drawn into the cavity by means of an actuation mechanism and be removed from it. 
   
   
       12 . The façade or roof structure according to  claim 1 , wherein at least one of the film or fabric layers is printed at least partially with an opaque material, in particular with a thin solar foil, the translucence and heat insulation of the façade or roof structure being adjustable by means of the print density. 
   
   
       13 . The façade or roof structure according to  claim 1 , wherein the film element can be connected to an air generation unit in order to set a positive or negative pressure in the cavity. 
   
   
       14 . The façade or roof structure according to  claim 13 , wherein the air generation unit has a filter and/or a drying apparatus in order to supply the cavity with humidity-reduced and/or filtered and, if required, tempered ambient air.