Method for roofing a lightweight construction and roof structure

Abstract

A Method for roofing a lightweight construction, comprises the steps of fastening a prefabricated trellis of metal wires to an upper frame of said light-weight construction, so that said trellis spans over an area of said lightweight construction, and putting a sheeting material on said trellis.

1 . Method for roofing a lightweight construction, comprising the steps of fastening a prefabricated trellis of metal wires to an upper frame of said lightweight construction, so that said trellis spans over an area of said lightweight construction, and putting a sheeting material on said trellis.  
     
     
         2 . Method according to  claim 1 , wherein said supporting structure comprises several adjacent webs of prefabricated trellis, characterised in that said step of fastening said prefabricated trellis comprises the steps of fastening a first web on two opposite sides of said upper frame of said lightweight construction, and fastening a second web on said two opposite sides of said upper frame, said second web being adjacent to said first web, said second web extending parallel to said first web and overlapping said first web partially.  
     
     
         3 . Method according to  claim 2 , comprising the step of fastening said first and second web together at an overlapping portion thereof.  
     
     
         4 . Method according to  claim 2  or  3 , comprising the step of tensing said first web in a direction parallel to said opposite sides.  
     
     
         5 . Method according to any of  claims 1  to  4 , characterised by the step of tensing of several auxiliary metal cables between two opposite sides of said upper frame of said lightweight construction prior to fastening said prefabricated trellis, said cables extending substantially parallel to each other and being spaced in a direction parallel to said opposite sides of said upper frame, said cables for supporting said prefabricated trellis.  
     
     
         6 . Method according to any one of  claims 1  to  5 , comprising the steps of putting a second prefabricated trellis of metal wires on said sheeting material and fastening said second trellis to said upper frame of said lightweight construction.  
     
     
         7 . Roof structure for lightweight construction, comprising a supporting structure and a sheet material placed on said supporting structure, said supporting structure being mounted on an upper frame of said lightweight construction and spanning over an area of said lightweight construction, characterised in that said supporting structure comprises at least one prefabricated trellis of metal wires.  
     
     
         8 . Roof structure according to  claim 7 , characterised in that said supporting structure comprises several adjacent webs of prefabricated trellis, said webs being fastened on two opposite sides of said upper frame of said lightweight construction.  
     
     
         9 . Roof structure according to  claim 8 , characterised in that each of said webs partially overlaps the adjacent webs, said adjacent webs being fastened together at an overlapping portion of said webs.  
     
     
         10 . Roof structure according to any one of  claims 7  to  9 , comprising several auxiliary metal cables, said metal cables being tensed between two opposite sides of said upper frame of said lightweight construction, said cables extending substantially parallel to each other and being spaced in a direction parallel to said opposite sides of said upper frame, said cables for supporting said prefabricated trellis.  
     
     
         11 . Roof structure according to any one of  claims 7  to  10 , characterised by a second prefabricated trellis of metal wires, said second trellis being placed on said sheeting material and fastened to said upper frame of said lightweight construction.  
     
     
         12 . Roof structure according to any one of  claims 7  to  11 , characterised in that said prefabricated trellis of metal wires comprises a welded mesh.