Insulating material element made of mineral fiber felt for clamping-like assembly between beams and the like

Abstract

At an insulation material sheet, consisting of a mineral fiber felt bound with a binding agent, of biosoluble mineral fibers, rolled up in the form of a roll, the composition of the mineral fibers features an alkali/earth alkali relation of <1 and the fiber structure is determined by the following features, i.e. average fiber diameter <4 μm, gross density in the range of 8 to 25 kg/m3 and binding agent portion in the range of 4 to 5,5 weight %.

1 . Insulation material element of mineral fibers, bound with a binding agent, soluble in a physiological milieu, in form of an insulation material plate or to a insulation material sheet rolled up as a roll and separable into insulation material plates as a portion of a system, prepared for clamped assembly of insulation plates between beams, such as roof rafters, characterized in that the composition of the mineral fibers of the insulation material element features a alkali/earth alkali relation of <1 and that their fiber structure is determined by an average geometric fiber diameter of <4 μm, by a gross density in the range of 8 to 25 kg/m3 and a portion of the binding agent referred to the fiber mass of the insulation material element in the range of 4% to 5.5 weight %.  
   
   
       2 . Insulation material element according to  claim 1 , characterized in that said binding agent is an organic binding agent.  
   
   
       3 . Insulation material element according to  claim 1 , characterized in that the binding agent, referred to the fiber mass of the insulation material sheet, is in the range of 4.5 to 5 weight %.  
   
   
       4 . Insulation material element according to  claim 1 , characterized in that its gross density is in the range of 8 to 14 kg/m, preferably 11 to 14 kg/m3, especially approximately 13 kg/m3, and the insulation material element features a thermal conducting capacity corresponding to thermal conductivity group  040 , according to DIN 18165 or similar.  
   
   
       5 . Insulation material element according to  claim 1 , characterized in that their gross density is in the range of 18 to 25 kg/m3, preferably 19 to 24 kg/m3, especially 23 kg/m3, and the insulation material element features a thermal conducting capacity corresponding to the thermal conductivity group  035 , according to DIN 18165.  
   
   
       6 . Insulation material element assembled between beams, such as roof rafters, without additional internal lining, according to  claim 1 , characterized in that it features a fire resistance category of at least EI 30, according to EN 113501.  
   
   
       7 . Insulation material element according to  claim 1 , characterized in that the roll up process of the mineral fiber felt, rolled up in form of a roll, is accomplished free of a prior treatment, eventually free of a fulling process.  
   
   
       8 . Insulation material element according to  claim 7 , characterized in that the wound up roll of the mineral fiber felt is compressed pursuant to a compression ratio of 1:3 until 1:8, preferably 1:4 until 1:6.  
   
   
       9 . Insulation material element according to  claim 1 , characterized in that upon said section, markings are provided as cutting aids, featured at least on one roll surface.  
   
   
       10 . Insulation material element according to  claim 1 , characterized in that the mineral fibers of the insulation material element, as far as their solubility in a physiological milieu is concerned, correspond to the requirement of European Guideline 97/69/EG and/or the requirements of the German Dangerous Products Norm, Section IV, Nr.22.  
   
   
       11 . Insulation material element according to  claim 1 , characterized in that said mineral fibers of the insulation element are produce by internal centrifugation in the centrifuging basket process, with a temperature at the centrifuging basket of at least 1,100° C.  
   
   
       12 . Insulation material element according to  claim 1 , characterized in that it features a fusion point according to DIN 4102, Part 17, of <1,100° C.  
   
   
       13 . Insulation material element according to  claim 1 , characterized by the following ranges of chemical composition of mineral fibers in weight %:  
     
       
         
               
               
               
             
                   
                   
               
                   
                   
               
                   
                 SiO 2   
                 39-55% 
               
                   
                 Al 2 O 3   
                 16-27% 
               
                   
                 CaO 
                  6-20% 
               
                   
                 MgO 
                 1-5% 
               
                   
                 Na 2 O 
                  0-15% 
               
                   
                 K 2 O 
                  0-15% 
               
                   
                 R 2 O (Na 2 O + K 2 O) 
                 10-[[14,7]] 
               
                   
                   
                 14.7% 
               
                   
                 P 2 O 5   
                 0-3% 
               
                   
                 Fe 2 O 3  (Iron total) 
                 [[1,5]] 1.5- 
               
                   
                   
                 15% 
               
                   
                 B 2 O 3   
                 0-2% 
               
                   
                 TiO 2   
                 0-2% 
               
                   
                 Other 
                 0-[[2,0]] 
               
                   
                   
                 2.0% 
               
                   
                   
               
                   
                   
               
           
              
              
             
             
              
              
              
              
              
              
              
              
              
              
              
              
              
              
              
              
              
             
          
         
       
     
   
   
       14 . Insulation material element according to  claim 1 , characterized in that the fiber structure of the insulation material element is respectively free of beads, meaning the bead portion is <1%.  
   
   
       15 . System for clamping insulation material elements between rafters of a building, in particular rafters of a roof, characterized by insulation material elements with the features of  claim 1 , being aligned and clamped with a clamping felt between adjacent beams.